Price Momentum: daily commentary archive

12 trading days, October 7, 2026 to October 22, 2026, newest first. Each is the commentary published with the page that day. This analysis was created with the assistance of large language model technology. Each describes that day's results; none is a forecast or investment advice.

October 2026

October 22, 2026

Charles River Laboratories (CRL) leads Price Momentum at 99.2 on October 22, 2026; Mosaic (MOS) is lowest at 5.7

On October 22, 2026, using prices through October 21, 2026, 493 of the 503 S&P 500 members received a score. Charles River Laboratories (CRL) holds the highest score, up from 97.0 to 99.2, and moves further ahead of Moderna (MRNA), which slipped from 96.4 to 94.2. Revvity (RVTY) and Illumina, Inc. (ILMN) joined the ten highest scores, replacing Coca-Cola Company (The) (KO) and Amgen (AMGN). At the bottom, Mosaic Company (The) (MOS) scores 5.7, followed by Broadcom (AVGO) at 6.4 and Emcor (EME) at 6.7.

Healthcare names account for much of the top ten: CRL, MRNA, RVTY, ILMN, BDX and CAH. CRL leads SPX by about 13.7 percentage points over 5 days and about 77 points over 6 months.
Hasbro (HAS) rose from 91.2 to 93.6 and now ranks third, while International Flavors & Fragrances (IFF) fell from 94.2 to 88.8. Chevron Corporation (CVX), Becton Dickinson (BDX) and Cardinal Health (CAH) also scored lower than the previous day but stayed in the top ten.
Moderna's lead over SPX across one year is very large, about 786 percentage points. Its score is still below CRL's because each stock is scored only against its own history.
Vertiv (VRT) scores 11.3 even though it is about 4.5 percentage points ahead of SPX over one year. It trails SPX by about 35 points over 3 months and about 40 points over 6 months.
None of the per-stock backtest results shown is significant after correction. These include reversal patterns for BBY, CL and DOV, each with a raw p-value below 0.00001.
Of the members not scored, 9 have too little history and 1 has a price that was not updated.

These scores describe how each stock has moved against SPX relative to its own past, and they do not show why prices moved or what any stock will do next.

October 21, 2026

Charles River Laboratories (CRL) leads the Price Momentum screener at 97.0 as healthcare names enter the top ten

On October 21, 2026, using prices through October 20, 2026, Charles River Laboratories (CRL) had the highest Price Momentum score at 97.0, followed by Moderna (MRNA) at 96.4, up from 94.7 the previous day. International Flavors & Fragrances (IFF), which led on October 20, 2026 at 94.9, slipped to 94.2 and third place. Several energy names that were in the previous top ten are no longer there, and healthcare names now hold most of the leading places. Broadcom (AVGO) had the lowest score at 4.2.

Amgen (AMGN) at 92.1, Becton Dickinson (BDX) at 91.5, Cardinal Health (CAH) at 91.4 and Hasbro (HAS) at 91.2 joined CRL as new entries in the top ten. Marathon Petroleum (MPC), Phillips 66 (PSX), ExxonMobil (XOM), ConocoPhillips (COP) and Airbnb (ABNB) dropped out of it.
Moderna (MRNA) is ahead of SPX by about 814 percentage points over one year, up from about 719 points the previous day.
Among energy names, Chevron Corporation (CVX) edged up from 92.6 to 92.9, while APA Corporation (APA) eased from 92.1 to 90.8.
Industrials make up much of the bottom of the list: Eaton Corporation (ETN) at 5.4, Vertiv (VRT) at 7.7 and Emcor (EME) at 8.6. Vertiv is roughly level with SPX over one year (+0.11 points) but trails it by about 45 points over six months.
493 of 503 S&P 500 members were scored today. Nine had too little history, and one had no updated price.
The per-stock backtest, dated October 16, 2026, lists four reversal tests for BBY, CL (two tests) and DOV. All four had low raw p-values, but none was significant after correction for everything tested.

The scores describe each stock's past returns against SPX relative to its own history; they do not explain why prices moved or indicate what will happen next.

October 20, 2026

International Flavors & Fragrances (IFF) leads Price Momentum on October 20, 2026; energy names fill most of the top ten

On October 20, 2026, using prices through October 19, 2026, IFF (International Flavors & Fragrances) has the highest score at 94.9, up from 93.2 on October 17, 2026, edging past Moderna (MRNA) at 94.7. Marathon Petroleum (MPC), the leader on October 17 at 96.0, slipped to 93.5, and energy stocks still make up most of the top ten. Alexandria Real Estate Equities (ARE) has the lowest score at 3.5. Of 503 S&P 500 members, 493 are scored today.

Moderna (MRNA) and Airbnb (ABNB) are new to the top ten at 94.7 and 89.4. Amgen (AMGN) and Becton Dickinson (BDX), at 90.9 and 90.5 on October 17, are no longer on the list.
Moderna's lead over SPX is the largest on the list: about 719 percentage points over one year and about 278 percentage points over three months.
Energy scores eased from October 17: Phillips 66 (PSX) went from 94.5 to 92.5 and ExxonMobil (XOM) from 93.7 to 91.8, while APA Corporation (APA) rose from 91.3 to 92.1.
Among the lowest scores, Broadcom (AVGO) is at 5.2 and Blackstone Inc. (BX) at 5.3. KKR & Co. (KKR) at 7.8 and Apollo Global Management (APO) at 11.3 also appear, putting several financial services names near the bottom.
Nine members have too little history to be scored and one has a price that was not updated.
None of the four per-stock backtest questions dated October 16, 2026 passed the correction. These were reversal tests on BBY, CL (two tests) and DOV. BBY's 1-day test, for example, had a p of 7.5e-07 but was not significant after correction.

Each score compares a stock only with its own past returns against SPX, so today's figures do not rank stocks against one another or indicate how any of them will perform from here.

October 17, 2026

Marathon Petroleum leads the Price Momentum screener on October 17, 2026, as Moderna leaves the ten highest scores

On October 17, 2026, using prices through October 16, Marathon Petroleum (MPC) has the highest score at 96.0, up from 92.4 the day before, when it ranked third. Moderna (MRNA), which led on October 16 at 98.3, is no longer among the ten highest scores, and ExxonMobil, Chevron, ConocoPhillips and APA have joined the top ten alongside Marathon Petroleum and Phillips 66. Alexandria Real Estate Equities (ARE) has the lowest score at 4.1, with several Financial Services names also near the bottom.

Coca-Cola Company (The) (KO) rose to 94.3 from 87.0 and is now third. It has beaten SPX by about 9 percentage points over the past five days.
Charles River Laboratories (CRL), Agilent Technologies (A) and Thermo Fisher Scientific (TMO), all in the October 16 top ten, are no longer among the ten highest scores.
Marathon Petroleum has beaten SPX by about 148 percentage points over one year and 117 percentage points over six months. Phillips 66 (PSX) scores 94.5.
Among the lowest scores are Broadcom (AVGO) at 4.7, Blackstone Inc. (BX) at 5.5, KKR & Co. (KKR) at 7.5, Apollo Global Management (APO) at 11.6 and Ares Management (ARES) at 12.5.
Of 503 S&P 500 members, 493 are scored today. Nine have too little history and one has a price that was not updated.
None of the four per-stock backtest results shown passed the correction for everything tested. These are reversal patterns for BBY, CL (two tests) and DOV. BBY's unadjusted p of 7.5e-07 became 0.16 after correction.

Each score compares a stock only with its own past relative returns against SPX, so the scores do not rank stocks against one another, explain why prices moved, or indicate what will happen next.

October 16, 2026

Moderna (MRNA) takes the top Price Momentum score at 98.3 as refiners' scores ease on October 16, 2026

On October 16, 2026, using prices through October 15, 2026, Moderna (MRNA) had the highest score at 98.3, up from 97.5 the day before, when it ranked second. Marathon Petroleum (MPC), the previous leader, fell to 92.4 from 98.0, and Phillips 66 (PSX) fell to 91.5 from 97.3. At the bottom, Alexandria Real Estate Equities (ARE) had the lowest score at 4.2. Of 503 S&P 500 members, 493 were scored today.

Valero Energy (VLO), ExxonMobil (XOM) and Illumina, Inc. (ILMN) left the top ten; Becton Dickinson (BDX) at 89.1, Thermo Fisher Scientific (TMO) at 87.3 and Coca-Cola Company (The) (KO) at 87.0 entered it.
Healthcare names fill much of the top ten, including Charles River Laboratories (CRL), up to 93.0 from 89.8, and Amgen (AMGN), up to 90.6 from 87.7.
Moderna (MRNA) is ahead of SPX by about 783 percentage points over one year and about 20 points over five days.
Below Alexandria Real Estate Equities (ARE) are T-Mobile US (TMUS) at 7.5 and Blackstone Inc. (BX) at 7.8; Vertiv (VRT) scores 10.7 even though it is about 5 points ahead of SPX over one year.
Nine members had too little history to score and one had a price that was not updated.
The per-stock backtest results dated October 9, 2026, for BBY and CL showed reversal tendencies with low raw p-values, but none passed the correction for everything tested.

These scores compare each stock only with its own past performance against SPX and do not indicate how any stock will perform from here.

October 15, 2026

Refiners and Moderna lead Price Momentum on October 15, 2026; Alexandria Real Estate Equities scores lowest

On October 15, 2026, using prices through October 14, 2026, Marathon Petroleum (MPC) holds the highest Price Momentum score at 98.0, slightly below its 98.3 a day earlier. Moderna (MRNA), Phillips 66 (PSX) and Valero Energy (VLO) follow closely, and healthcare names joined the top ten as technology names left it. At the bottom, Alexandria Real Estate Equities (ARE) scores 3.9, with Blackstone Inc. (BX) and KKR & Co. (KKR) close behind. Of 503 S&P 500 members, 493 are scored today.

Moderna (MRNA) rose to 97.5 from 96.8 and leads SPX by about 729 percentage points over one year; Phillips 66 (PSX) held at 97.3, while Valero Energy (VLO) slipped to 96.7 from 97.3.
Charles River Laboratories (CRL, 89.8), Illumina, Inc. (ILMN, 89.7), Agilent Technologies (A, 88.5) and Amgen (AMGN, 87.7) entered the top ten, replacing Everpure (P), NetApp (NTAP), Revvity (RVTY) and APA Corporation (APA), which were there on October 14, 2026.
International Flavors & Fragrances (IFF) rose to 92.4 from 88.8, and ExxonMobil (XOM) rose to 87.7 from 85.6.
The lowest scores include Alexandria Real Estate Equities (ARE, 3.9), Blackstone Inc. (BX, 4.8), KKR & Co. (KKR, 5.3) and CRH plc (CRH, 6.4); AppLovin (APP, 9.5) trails SPX by about 73 percentage points over one year.
Of the 503 members, 9 have too little history to be scored and 1 has a price that was not updated.
The per-stock backtest shown on the page, dated October 9, 2026, lists four reversal tests for BBY and CL; each had a small raw p-value, but none passed the correction for everything tested, so none is counted as a real pattern.

These scores compare each stock only with its own past performance against SPX and describe past prices; they do not show why prices moved or what they will do next.

October 14, 2026

Refiners MPC, VLO and PSX lead October 14, 2026 Price Momentum scores, all higher than the day before

On October 14, 2026, using prices through October 13, 2026, Marathon Petroleum (MPC) had the highest Price Momentum score at 98.3, up from 95.2 on October 13, 2026. Valero Energy (VLO) and Phillips 66 (PSX) followed at 97.3 each, up from 90.3 and 92.4. CRH plc (CRH) had the lowest score at 2.9. Of 503 S&P 500 members, 493 were scored today.

Energy names in today's top ten are MPC, VLO, PSX, APA Corporation (APA) at 86.7 and ExxonMobil (XOM) at 85.6; APA and XOM were not in the October 13 top ten.
Moderna (MRNA) rose to 96.8 from 92.8 and is about 686 percentage points ahead of SPX over one year, while Everpure (P) at 95.5 and NetApp (NTAP) at 95.4 were little changed from 95.0 and 94.8.
Revvity (RVTY) at 90.7 and International Flavors & Fragrances (IFF) at 88.8 also joined the top ten, while Hewlett Packard Enterprise (HPE), Fortinet (FTNT), Philip Morris International (PM) and Zebra Technologies (ZBRA) left it.
The lowest scores include building-materials names CRH plc (CRH) at 2.9, Martin Marietta Materials (MLM) at 5.5 and Mosaic Company (The) (MOS) at 7.8, alongside KKR & Co. (KKR) at 5.7 and Blackstone Inc. (BX) at 7.7.
Nine members had too little history to score and one had a price not updated.
The per-stock backtest dated October 9, 2026 shows four reversal results for BBY and CL with low raw p-values (BBY p 7e-07), but none was significant after correction for everything tested.

Each score ranks a stock only against its own past returns relative to SPX, so it does not compare stocks with one another and does not indicate future performance.

October 13, 2026

MPC tops Price Momentum on October 13, 2026 as MRNA slips from first to fourth; CHTR scores lowest

On October 13, 2026, using prices through October 12, MPC led the screener with a score of 95.2, just ahead of P at 95.0 and NTAP at 94.8. MRNA, the leader on October 10 at 97.8, fell to 92.8, and HPE dropped from 97.0 to 92.1. At the other end, CHTR scored 3.3, followed by MOS at 5.3 and CMCSA at 5.5. Of 503 S&P 500 members, 493 have a score today.

MPC edged down from 95.7 to 95.2 but moved to the top spot as MRNA and HPE fell further; P (95.6 to 95.0) also slipped while NTAP rose from 93.9 to 94.8.
PM (85.0) and ZBRA (84.7) entered the top ten, replacing CRL and RVTY, which were listed on October 10.
Energy refiners remain prominent at the top: MPC, PSX (up from 91.1 to 92.4) and VLO (down from 92.5 to 90.3).
MRNA still shows the largest one-year lead over SPX in the top ten, about 659 percentage points, down from about 689 on October 10.
Communication services names CHTR, CMCSA and TMUS sit among the ten lowest scores, with CHTR trailing SPX by about 79 percentage points over one year.
In the per-stock backtest dated October 9, 2026, the reversal patterns shown for BBY and CL had low raw p-values (as low as 7e-07 for BBY) but none passed the correction for everything tested.

Each score measures a stock only against its own past relative performance, so it does not rank stocks against one another, explain why prices moved, or indicate what they will do next.

October 10, 2026

Moderna moves to the top of Price Momentum on October 10, 2026; the same ten names lead as the day before

On October 10, 2026, using prices through October 9, 2026, 493 of 503 S&P 500 members had a Price Momentum score. Moderna (MRNA) rose to the highest score, 97.8, from 90.6 the day before. Hewlett Packard Enterprise (HPE), yesterday's leader, slipped to 97.0 from 98.0. Charter Communications (CHTR) had the lowest score at 2.6.

MRNA's lead over SPX widened across every period shown: about 689 percentage points over one year (603.7 the day before) and 61.7 over one month (43.5 the day before).
The ten highest scores are held by the same stocks as on October 9, 2026, though the order changed. MPC fell to 95.7 from 97.2, VLO to 92.5 from 95.5 and PSX to 91.1 from 93.5, while CRL rose to 91.2 from 88.9.
Technology and energy names make up most of the top ten, with HPE, P, NTAP and FTNT alongside MPC, VLO and PSX.
At the bottom, Charter (2.6), Comcast (3.5) and T-Mobile US (5.3) represent communication services, and MOS, CRH and MLM represent basic materials.
Nine members lacked enough history to be scored and one did not have an updated price.
In the per-stock backtest, none of the questions shown passed the correction for multiple testing. BBY's one-day reversal had a raw p of 7e-07 but was not significant after correction, and the same was true of the three Colgate-Palmolive (CL) reversal tests.

Each score compares a stock only with its own past relative returns, so these figures do not rank stocks against one another and do not indicate future performance.

October 9, 2026

HPE keeps the top Price Momentum score at 98.0 as MPC moves up to second place with 97.2

On October 9, 2026, using prices through October 8, 2026, the Price Momentum screener scored 493 of the 503 S&P 500 members. HPE again holds the highest score, at 98.0 against 98.7 the day before, while MPC rose to 97.2 from 95.2 and moved ahead of P and NTAP. Technology, energy and healthcare names fill the top ten, and industrials appear often among the lowest scores, led by COO at 2.6. None of the per-stock backtest patterns shown passed the correction for multiple testing.

Several energy names rose. VLO went to 95.5 from 93.4 and PSX to 93.5 from 89.8, and both trail the market by less over most periods than MPC and HPE lead it.
MRNA rose to 90.6 from 87.5. Its one-year return is about 604 percentage points ahead of SPX's, the largest gap among today's leaders.
RVTY (89.4) and CRL (88.9) entered the top ten. MRVL and DELL, which scored 90.3 and 86.6 on October 8, 2026, are no longer listed among the highest scores.
At the bottom, COO scores 2.6, PNR 4.8 and TXT 6.0. PNR trails SPX by about 69 percentage points over one year, and CHTR, at 6.7, trails by about 77.
Nine members have too little history to be scored, and one was not scored because its price was not updated.
The per-stock backtest, dated October 7, 2026, lists reversal patterns in BBY, CL and YUM. These have very small raw p-values, such as 7.7e-07 for BBY, but each was judged not significant after correction, with corrected p-values between 0.14 and 0.43.

Each score compares a stock only with its own past performance against SPX, so the scores do not rank stocks against each other, and they describe past prices without indicating future returns.

October 8, 2026

HPE leads the Price Momentum screener on October 8, 2026 with a score of 98.7; AON is lowest at 2.1

On October 8, 2026, using closing prices through October 7, 2026, 494 of the 503 S&P 500 members carry a Price Momentum score. HPE has the highest score at 98.7, followed by P at 96.7 and NTAP at 96.0. AON has the lowest at 2.1, with WY at 2.3 and COO at 2.8. None of the per-stock backtest questions shown today passed the correction for multiple testing.

The top ten are technology names (HPE, P, NTAP, MRVL, FTNT, DELL), energy refiners (MPC, VLO, PSX) and one healthcare stock, MRNA.
MRNA scores 87.5 and leads SPX by about 596 percentage points over one year, but by only about 0.1 points over five days.
Every stock in the bottom ten trails SPX over all five periods. CHTR trails by about 79 percentage points over one year and by about 67 points over six months.
Consumer cyclical stocks NKE, WYNN and LOW and real estate stocks WY and MAA are all among the ten lowest scores.
The strongest backtest result is BBY: after beating SPX over 1 day, it did 0.29% worse over the next day than after trailing it (p 7.7e-07). It was not significant after correction.
Nine members show 'Too little history' and have no score. The page shows no previous day's list of highest scores to compare against.

Each score ranks a stock only against its own past relative returns, so the scores do not compare stocks with each other and do not indicate future performance.

October 7, 2026

On October 7, 2026, MPC still leads the momentum ranking, with technology stocks filling most of the top ten

On October 7, 2026, using prices through October 6, 2026, MPC (Energy) keeps the top rank with a composite score of 2.055, down from 2.1 the previous day. HPE (2.035) and LITE (2.005) hold second and third, and technology names make up most of the strongest ten. Of the 500 ranked members, 36 are labeled strong up, 204 up, 234 down and 26 strong down; 3 lack sufficient history. The page's own tests do not support using the composite score to pick the next day's winners.

HPE's score rose from 1.998 to 2.035 and LITE's from 1.987 to 2.005, while MPC's slipped from 2.1 to 2.055 without losing first place.
MRVL moved up from rank 10 to rank 7 (score 1.854), VLO fell from rank 6 to rank 8 (1.788), and MU dropped from rank 8 to rank 9 (1.683).
CRWD enters the top ten at rank 10 with a score of 1.652, and STX, ranked ninth on October 6, 2026, is no longer among the strongest ten.
At the bottom, ROL has the lowest score at -1.718, followed by NKE at -1.486 and PNR at -1.484; consumer cyclical names make up most of the weakest ten.
In the tests as of October 6, 2026, ranking by the score to pick the next day's winners is Not supported (t -1.84), the score adding to plain 12-1 momentum is Contradicted (t -5.16), and the top 10% beating the market is Not supported (t -1.59).
Some component measures fare better: Volatility-Scaled 12-1 Momentum (t 7.38) and Intermediate Momentum (t 6.20) are Supported, as is next-day fallback for winners of the last 10 days (t -4.81).

These scores describe past price movement and do not show why any stock moved or how it will perform from here.