CPRT vs WDC: Both Watchlist-Only Signals Compared
How did Copart (CPRT) and Western Digital (WDC) fare under JumpstartSignal's 5-stage screening pipeline across our full 2012–2025 walk-forward backtest? We flagged CPRT 19 times (426 signal days, first signal in 2016) and WDC 18 times (224 signal days, first signal in 2012). Every entry price, return, and SPY comparison below is from the frozen backtest snapshot.
📌 Note: Both CPRT and WDC only ever reached our MONITOR watchlist tier, neither was promoted to a SPOTLIGHT or OPPORTUNITY buy signal. MONITOR clusters are published here for research context, not as executed trades.
Head-to-Head Stats
CPRT 📌 MONITOR Copart · Industrials
WDC 📌 MONITOR Western Digital · Technology
Per-Signal Returns
Each bar below shows the best return from one signal cluster, held from the entry date through Feb 1, 2026. The SPY return over the same period is shown alongside each entry, alpha is the gap between the two.
CPRT Signal Clusters
| Entry Date | Entry Price | Return | SPY Return | Alpha vs SPY |
|---|---|---|---|---|
| Mar 31, 2016 | $5.09 | +697% | +290% | +407% |
| May 3, 2016 | $5.31 | +664% | +291% | +374% |
| Jun 10, 2016 | $6.01 | +575% | +288% | +288% |
| Sep 20, 2016 | $6.43 | +531% | +274% | +258% |
| Nov 9, 2016 | $6.66 | +509% | +267% | +242% |
| Apr 20, 2017 | $7.56 | +437% | +235% | +202% |
| May 25, 2018 | $13.56 | +199% | +184% | +15% |
| Sep 14, 2018 | $16.04 | +153% | +165% | -12% |
| Mar 25, 2019 | $14.88 | +173% | +172% | +0% |
| Apr 25, 2019 | $16.44 | +147% | +160% | -13% |
| Feb 11, 2020 | $25.58 | +59% | +123% | -65% |
| Sep 28, 2020 | $26.29 | +54% | +120% | -66% |
| Apr 19, 2021 | $30.32 | +34% | +78% | -44% |
| May 21, 2021 | $31.21 | +30% | +73% | -43% |
| Aug 6, 2021 | $36.50 | +11% | +65% | -54% |
| Aug 25, 2021 | $35.74 | +14% | +64% | -50% |
| Dec 7, 2021 | $37.30 | +9% | +55% | -46% |
| Oct 15, 2024 | $53.69 | -24% | +20% | -44% |
| Nov 6, 2024 | $55.44 | -27% | +18% | -45% |
WDC Signal Clusters
| Entry Date | Entry Price | Return | SPY Return | Alpha vs SPY |
|---|---|---|---|---|
| May 10, 2012 | $24.45 | +923% | +545% | +378% |
| Aug 23, 2012 | $25.63 | +876% | +505% | +372% |
| Jan 18, 2013 | $27.54 | +809% | +479% | +329% |
| Jun 17, 2013 | $38.85 | +544% | +428% | +116% |
| Aug 12, 2013 | $42.29 | +492% | +403% | +88% |
| Oct 16, 2013 | $43.16 | +480% | +392% | +88% |
| Dec 4, 2013 | $48.30 | +418% | +371% | +47% |
| Jan 31, 2014 | $52.92 | +373% | +369% | +4% |
| Jun 18, 2014 | $58.31 | +329% | +327% | +2% |
| Aug 15, 2014 | $62.99 | +297% | +321% | -23% |
| Jan 12, 2015 | $70.02 | +257% | +308% | -50% |
| Sep 15, 2017 | $60.63 | +313% | +214% | +99% |
| Nov 6, 2017 | $60.51 | +314% | +202% | +112% |
| Mar 5, 2021 | $50.31 | +397% | +89% | +309% |
| Apr 5, 2021 | $54.44 | +360% | +80% | +279% |
| Apr 26, 2021 | $53.35 | +369% | +76% | +294% |
| Apr 17, 2024 | $52.55 | +376% | +39% | +338% |
| Aug 14, 2025 | $74.66 | +235% | +9% | +226% |
What This Teaches
Which stock a quant system picks more often says more about price-action shape than about the business. CPRT kept printing clean SMA20/50 crossover + breakout-volume setups (19 distinct clusters over 14 years); WDC printed them 18× in the same window. Same universe, same rules, different output, and that is exactly what a rules-based pipeline is supposed to produce.
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FAQ
Did JumpstartSignal ever buy CPRT, WDC?
No. CPRT, WDC only ever cleared our weekly MONITOR tier, a watchlist of stocks matching some but not all of our buy criteria. MONITOR signals are published for research context, not executed as trades; only SPOTLIGHT and OPPORTUNITY signals enter the backtested portfolio.
Is CPRT or WDC a better momentum stock?
In our 14-year backtest, CPRT had an average alpha of +69% per signal versus +167% for WDC. CPRT produced 19 MONITOR watchlist clusters vs 18 MONITOR watchlist clusters for WDC.
When did JumpstartSignal first flag CPRT?
Mar 31, 2016 at an entry price of $5.09 (MONITOR watchlist tier only). That signal has returned +697% held to the snapshot date, versus +290% for SPY over the same period.
When did JumpstartSignal first flag WDC?
May 10, 2012 at an entry price of $24.45 (MONITOR watchlist tier only). That signal has returned +923% held to the snapshot date, versus +545% for SPY.
Does this mean one stock is a buy and the other isn't?
No. Historical signal frequency and past returns are not buy recommendations. Our pipeline identifies entries that would have matched the template historically. Past performance does not guarantee future results. Use these pages as methodology research, not investment advice.
Where does the underlying data come from?
All entries on this page come from the R30 walk-forward validated backtest covering 2012–2025 (the 'seo_active' snapshot in our golden archive). Entry prices, returns, and SPY comparisons are computed from Stooq end-of-day OHLCV and frozen at snapshot time. See our methodology for details.