IDXX vs NFLX: Buy Signal vs Watchlist-Only
How did IDEXX Laboratories (IDXX) and Netflix (NFLX) fare under JumpstartSignal's 5-stage screening pipeline across our full 2012–2025 walk-forward backtest? We flagged IDXX 3 times (9 signal days, first signal in 2012) and NFLX 15 times (188 signal days, first signal in 2014). Every entry price, return, and SPY comparison below is from the frozen backtest snapshot.
📌 Note: NFLX only ever reached our MONITOR watchlist tier, it was never promoted to a SPOTLIGHT or OPPORTUNITY buy signal. IDXX did reach SPOTLIGHT or OPPORTUNITY. That asymmetry is the story of this comparison.
Head-to-Head Stats
IDXX 🏆 SPOTLIGHT IDEXX Laboratories · Healthcare
NFLX 📌 MONITOR Netflix · Communication Services
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.
IDXX Signal Clusters
| Entry Date | Entry Price | Return | SPY Return | Alpha vs SPY |
|---|---|---|---|---|
| Apr 19, 2012 | $43.22 | +1451% | +534% | +917% |
| Aug 31, 2012 | $47.53 | +1311% | +516% | +794% |
| May 13, 2014 | $63.40 | +958% | +348% | +610% |
NFLX Signal Clusters
| Entry Date | Entry Price | Return | SPY Return | Alpha vs SPY |
|---|---|---|---|---|
| Feb 5, 2014 | $5.78 | +1344% | +381% | +964% |
| Jul 27, 2017 | $18.27 | +357% | +218% | +139% |
| Jun 25, 2020 | $44.34 | +88% | +147% | -59% |
| Aug 26, 2020 | $54.75 | +52% | +113% | -61% |
| Oct 13, 2020 | $53.08 | +57% | +112% | -55% |
| Oct 19, 2021 | $63.90 | +31% | +62% | -31% |
| May 26, 2023 | $37.89 | +120% | +69% | +51% |
| Nov 8, 2023 | $43.52 | +92% | +63% | +29% |
| Dec 13, 2023 | $47.21 | +77% | +50% | +27% |
| Jan 11, 2024 | $49.22 | +70% | +48% | +22% |
| May 7, 2024 | $60.60 | +38% | +36% | +2% |
| Aug 15, 2024 | $66.32 | +26% | +26% | 0% |
| Nov 25, 2024 | $86.56 | -4% | +16% | -20% |
| Jan 22, 2025 | $95.40 | -12% | +14% | -27% |
| Mar 5, 2025 | $95.00 | -12% | +22% | -34% |
What This Teaches
Signal frequency is not opinion; it's the pipeline firing or not firing against the same rules. Over the 2012–2025 window, NFLX triggered entries 15× versus 3× for IDXX. The lesson here isn't that one company is better than the other; it's that the template is tuned for a specific kind of setup and this pair shows which stock's price behaviour kept offering that setup.
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FAQ
Did JumpstartSignal ever buy NFLX?
No. NFLX 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. IDXX, by contrast, did reach SPOTLIGHT or OPPORTUNITY in our pipeline; that asymmetry is the core story of this page.
Is IDXX or NFLX a better momentum stock?
In our 14-year backtest, IDXX had an average alpha of +774% per signal versus +63% for NFLX. IDXX produced 3 SPOTLIGHT or OPPORTUNITY buy-signal clusters vs 15 MONITOR watchlist clusters for NFLX. Note the tier difference: MONITOR clusters are watchlist-only and were never promoted to buy signals, so cluster counts are not directly comparable across tiers.
When did JumpstartSignal first flag IDXX?
Apr 19, 2012 at an entry price of $43.22 (SPOTLIGHT or OPPORTUNITY buy signal). That signal has returned +1451% held to the snapshot date, versus +534% for SPY over the same period.
When did JumpstartSignal first flag NFLX?
Feb 5, 2014 at an entry price of $5.78 (MONITOR watchlist tier only). That signal has returned +1344% held to the snapshot date, versus +381% 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 R27 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.