Period 14 Review: Quality Growth Reclaims the Lead as CANSLIM Rocket Posts Its Worst Period on Record

Period 14 covers July 11 to July 18, 2026 — seven days that reversed nearly every trend Period 13 established. Three screens were positive, four negative, and the spread between best and worst widened to 6.81 percentage points — Quality Growth at +1.57% and CANSLIM Rocket at −5.24% — breaking a three-period streak of narrowing spreads (9.00 points in Period 11, 6.06 in Period 12, 3.42 in Period 13). Both benchmarks also closed negative, the S&P 500 at −1.55% and the NASDAQ at −2.90%, only the third time in the journal that both have fallen in the same period.

The period's headline is CANSLIM Rocket's collapse: after Period 13's tentative stabilization, MU (Micron Technology) fell again, and this time the entire semiconductor cluster fell with it rather than offsetting the damage. GLW (Corning) led the decline at −19.01%, CLS (Celestica) fell −16.26%, and SMCI (Super Micro Computer) dropped −14.59%. CANSLIM's −5.24% is its worst single-period result in the journal — narrowly behind only Magic Formula's −5.50% (Period 3) and Piotroski's −5.25% (Period 10) as the worst posted by any screen. Meanwhile Quality Growth reclaimed the top spot at +1.57%, though the win rested almost entirely on one position: DAVE's +9.90% gain.

Period 14 Returns: Quality Growth Back on Top as CANSLIM Craters

Quality Growth topped the table at +1.57%, followed by Schloss Dividend at +1.44% and Piotroski F-Score at +0.77%. The other four screens all closed negative: Lunch at −0.18%, Burry Value at −0.42%, Magic Formula at −2.59%, and CANSLIM Rocket at −5.24%, by far the week's worst result and a sharp reversal from its +0.27% gain last period.

Quality Growth's +1.57% was carried almost entirely by DAVE (Dave Inc.), which gained +9.90%, from $400.75 to $440.42, contributing approximately +1.65 percentage points at the screen's 16.67% equal weight — more than the entire period's return on its own. CNX (CNX Resources) added +4.03% (+0.67 points), from $31.99 to $33.28, reversing last period's −5.47% decline. AUPH (Aurinia Pharmaceuticals) rose +1.14% (+0.19 points) and FICO (Fair Isaac) added +0.50% (+0.08 points). Against these, SEZL (Sezzle) fell −2.63% (−0.44 points) and NBIX (Neurocrine Biosciences) declined −3.52% (−0.59 points). Four of six positions closed positive. All six positions were retained for a fourth consecutive period without turnover; AGI (Alamos Gold) and APP (AppLovin) enter the screen for Period 15, ending a streak of seven periods without any new additions.

Schloss Dividend's +1.44% was its second straight winning period, led by ATHM (Autohome), which gained +6.06%, from $20.30 to $21.53, contributing approximately +0.50 percentage points at the 8.33% weight. GGB (Gerdau) added +4.89% (+0.41 points), THO (Thor Industries) rose +4.68% (+0.39 points), and MOS (Mosaic) gained +2.88% (+0.24 points). Against these, DAC (Danaos) fell −1.96% (−0.16 points) and MTH (Meritage Homes) declined −1.76% (−0.15 points). Eight of eleven retained positions closed positive. REXR (Rexford Industrial) exited at the sell fee; no new positions entered, leaving the screen at eleven names for Period 15.

Piotroski's +0.77% was its best result in three periods, led by GLOB (Globant SA), which surged +7.58%, from $29.96 to $32.23, contributing approximately +0.58 percentage points at the 7.69% weight — a sharp reversal from Period 13's −7.84% decline. WGO (Winnebago Industries) added +4.53% (+0.35 points), LUXE (Brilliant Earth) gained +2.78% (+0.21 points), and WDH (Waterdrop) rose +1.72% (+0.13 points). Against these, GASS (StealthGas) fell −4.16% (−0.32 points) and GDYN (Grid Dynamics) declined −1.36% (−0.10 points). Eight of thirteen positions closed positive. API exited at the sell fee; ASC (ArcelorMittal South Africa), which exited at the end of Period 13, re-enters the screen for Period 15 alongside KE (KE Holdings), a first-time addition.

CANSLIM Rocket's −5.24% is its own worst period on record, and the third-worst posted by any screen in the journal's fourteen periods — trailing only Magic Formula's −5.50% (Period 3) and Piotroski's −5.25% (Period 10). Last period's "stabilization, not recovery" for MU turned out to be neither.

Lunch's −0.18% was its second consecutive mild decline, its seventeen positions split roughly evenly. BZ (Kanzhun) led with +8.36%, from $13.76 to $14.91, contributing approximately +0.49 percentage points at the 5.88% weight. CVE (Cenovus Energy) added +5.87% (+0.35 points) and ESTC (Elastic) gained +2.24% (+0.13 points). Against these, AEM (Agnico Eagle) fell −6.74% (−0.40 points), PAAS (Pan American Silver) declined −4.35% (−0.26 points), and FSM (Fortuna Silver) gave back −4.23% (−0.25 points). Seven of seventeen positions closed positive. HRMY (Harmony Biosciences) and PATH (UiPath) both exited at the sell fee — HRMY's exit also dissolved its overlap pairing with Burry Value Screen, which dropped the same name this period. No new positions entered, shrinking the screen from seventeen to fifteen.

Burry Value's −0.42% masked a wide spread between winners and losers across its thirty-nine positions. CNS (Cohen & Steers) led with +9.37%, from $77.40 to $84.65, contributing approximately +0.23 percentage points at the 2.50% weight. HLNE (Hamilton Lane) added +5.87% (+0.15 points) and NMIH (NMI Holdings) gained +4.49% (+0.11 points). Against these, SSRM (SSR Mining) fell −10.53% (−0.26 points), HL (Hecla Mining) declined −9.42% (−0.24 points), and CRUS (Cirrus Logic) gave back −8.23% (−0.21 points). Roughly two-thirds of retained positions closed positive. Three positions — BMI (Badger Meter), HRMY (Harmony Biosciences), and JHG (Janus Henderson Group) — exited at the sell fee, the screen's largest single-period contraction since Period 5; no new positions entered, shrinking the portfolio from forty to thirty-seven.

Magic Formula's −2.59% reversed a broad mining-sector rally, this time led down by the same gold and silver names that had helped it in prior periods. ORLA (Orla Mining) fell −11.78%, from $9.76 to $8.61, subtracting approximately −0.91 percentage points at the 7.69% weight. OGC (OceanaGold) declined −9.23% (−0.71 points), IAG (Iamgold) gave back −7.70% (−0.59 points), and CGAU (Centerra Gold) fell −6.97% (−0.54 points). Against these, DDS (Dillard's) gained +5.18% (+0.40 points) and BSM (Black Stone Minerals) added +3.62% (+0.28 points). Only three of thirteen positions closed positive, the screen's worst breadth since Period 5. All thirteen positions were retained for a second consecutive period, meaning the entire loss came from price moves inside an unchanged portfolio.

CANSLIM's −5.24% was driven by an almost uniform semiconductor selloff across its nineteen positions. GLW (Corning) collapsed −19.01%, from $190.89 to $154.61, subtracting approximately −1.00 percentage points at the 5.26% weight — the single largest position-level drag of any screen this period. CLS (Celestica) fell −16.26% (−0.86 points), SMCI (Super Micro Computer) declined −14.59% (−0.77 points), and MU (Micron Technology) dropped −13.31% (−0.70 points), from $979.30 to $848.95 — resuming the collapse that defined Period 12 after last period's brief flattening. LRCX (Lam Research) gave back −10.57% (−0.56 points) and AVGO (Broadcom) fell −7.29% (−0.38 points). Only LUXE (+2.78%), HALO (+2.11%), PODD (+1.72%), and FN (+1.54%) closed positive — four of nineteen positions, the screen's worst breadth in the journal. STRL (Sterling Infrastructure) and TSM (Taiwan Semiconductor) exited at the sell fee; DY (Dycom Industries), ERO (Ero Copper), and SKHY (Sky Harbour) enter the screen for Period 15.

Retention: The Calm Was a One-Period Phenomenon

Period 14 pulled retention sharply back toward the journal's historical norm after Period 13's record calm. Only two screens — Magic Formula and Quality Growth — held 100% of their starting positions, down from six of seven last period. Lunch posted the field's lowest retention at 88.2%, followed by CANSLIM Rocket at 89.5%, as both screens turned over multiple positions in a single period.

The contrast with last period is stark in the other direction now. In Period 13, six screens held perfect retention while only Piotroski reshuffled; this period, only Magic Formula and Quality Growth repeated that feat, and every other screen turned over at least one position — five screens in total, none catastrophically, but enough to end the calmest stretch of the journal after a single period.

Cumulative Scoreboard: Quality Growth Extends Its Lead, Magic Formula Falls to Last

Quality Growth's win pushed its cumulative return from +19.95% to +21.84%, restoring the widening lead it lost in Period 13 and keeping it the only screen ahead of both benchmarks by a wide margin. CANSLIM's −5.24% pulled its cumulative return down from +8.19% to +2.52%, dropping it from second to third place and erasing more than half of what it had built over the prior thirteen periods in a single week.

Magic Formula's −2.59% dropped its cumulative return to −12.19% from −9.85%, pushing it past Piotroski F-Score (−11.91%, up from −12.58% after Period 14's +0.77%) into last place among the seven screens for the first time in the journal. Schloss Dividend's +1.44% extended its cumulative return to +5.54% from +4.05%, holding second place, while Burry Value's −0.42% trimmed its cumulative return to +0.98% from +1.41%, slipping from third to fourth as CANSLIM — despite its worst-ever period — stayed ahead on the strength of gains built earlier in the journal.

Against benchmarks, Quality Growth's cumulative alpha widened further positive to +11.87 points versus the S&P 500 and +9.40 points versus the NASDAQ — up from +8.24 and +4.16 at the close of Period 13 — as both indices fell while Quality Growth rose. CANSLIM's alpha widened sharply negative, from −3.52/−7.60 points to −7.45/−9.92 points versus the S&P 500 and NASDAQ respectively, the largest single-period swing of any screen this period. Schloss, Burry, and Lunch all saw their alpha improve modestly simply because the benchmarks fell faster than they did, while Magic Formula's and Piotroski's alpha moved in opposite directions versus the two indices — a reminder that alpha this period was shaped as much by benchmark weakness as by screen performance.

Overlap: Nine Stocks as AGI Replaces HRMY

The July 18 snapshot again shows nine stocks in two or more screens, unchanged in count from July 11 but different in composition. HRMY (Harmony Biosciences) exited both Burry Value Screen and Lunch this period, dissolving their shared position entirely. Taking its place, AGI (Alamos Gold) — already held in CANSLIM Rocket — was added to Quality Growth for Period 15, creating a new overlap pair between the two screens for the first time.

Burry Value Screen still anchors the most overlap pairs — AEM, CPRX, and FSM sit in both Burry and Lunch, alongside CALM (shared with Magic Formula) and AUPH (shared with Quality Growth). This period the shared names cut mostly one way: AEM's −6.74% and FSM's −4.23% dragged down both Burry and Lunch, and PAAS's −4.35% weighed on both Lunch and CANSLIM. LUXE's +2.78% was one of the few bright spots shared across two screens, lifting both Piotroski and CANSLIM. AGI's −4.07% pulled on CANSLIM this period but had not yet begun accruing a return inside Quality Growth, having been added too late in the period to register a price move — the same mechanic that applied to PAAS's addition to CANSLIM back in Period 13.

What Period 14 Tells You

CANSLIM's stabilization proved temporary. MU fell again, from $979.30 to $848.95 (−13.31%), essentially undoing the flat result it posted last period — but this time the damage wasn't isolated. GLW, CLS, SMCI, and LRCX all fell double digits alongside it, meaning the screen's semiconductor cluster moved together on the way down instead of offsetting each other as it briefly did in Period 13. The screen's −5.24% is its worst period on record and the third-worst posted by any screen in the journal's history. Last period's read — "stabilization, not recovery" — turns out to have been generous.

Quality Growth's win came from one position, again. DAVE's +9.90% gain contributed roughly +1.65 percentage points, more than the screen's entire +1.57% period return; the other five positions combined for something close to flat. In a six-name portfolio this has now happened repeatedly — Period 12's win leaned on AUPH's decline being outweighed by DAVE and others, and this period DAVE alone did the work. The structure that makes Quality Growth capable of a standout week is the same structure that leaves it exposed to a single bad one.

Retention swung back to the journal's normal range after one calm period. Six of seven screens held perfect retention in Period 13 — the highest simultaneous count so far. This period only two did, and every other screen turned over at least one position. Lunch and CANSLIM Rocket, both untouched last period, posted the field's lowest retention this time. Whatever produced Period 13's calm did not carry forward.

The narrowing-spread streak broke, and the bottom of the table changed hands. Three consecutive periods of a tightening best-to-worst gap (9.00 → 6.06 → 3.42 percentage points) reversed to 6.81 points this period as CANSLIM's collapse pulled the bottom further from the top. At the same time, Magic Formula's −2.59% dropped its cumulative return below Piotroski's for the first time in the journal, making it the new worst-performing screen even though Piotroski actually had the better period.