BOOM
After each kind of event
| Event | Events | Reaction day | 1 day | 1 week | 1 month | 1 quarter |
|---|---|---|---|---|---|---|
| Any day | 1,255 | — | -0.1%589/1254 up | -0.7%586/1250 up | -2.7%555/1234 up | -9.8%377/1192 up |
| Big drop (-3.8% or worse) | 60 | — | 0.0%29/60 up | -0.6%26/60 up | -4.9%23/59 up | -2.4%25/58 up |
| Big gain latest session (+4.0% or better) | 58 | — | -1.1%19/58 up | +0.5%30/58 up | -0.9%27/57 up | -6.5%20/56 up |
| Earnings beat Oct 28 | 14 | +7.4%10/14 up | -2.7%4/14 up | -5.9%5/13 up | -0.9%6/13 up | -10.0%5/13 up |
| Earnings miss | 6 | -13.4%0/6 up | +1.2%3/6 up | -2.5%2/6 up | -13.8%1/6 up | -6.7%2/6 up |
| 52-week high latest session | 1 | — | — | — | — | — |
| 52-week low | 8 | — | -3.2%3/8 up | -2.5%3/8 up | +0.4%4/8 up | +9.9%5/8 up |
| Crossed above 200-day avg Oct 28 | 13 | — | -1.2%4/13 up | +1.5%7/12 up | -7.0%4/12 up | -12.4%2/12 up |
| Crossed below 200-day avg | 12 | — | -0.4%5/12 up | +0.1%6/12 up | -8.8%5/12 up | -0.6%5/11 up |
| RSI oversold | 21 | — | -1.0%5/21 up | -1.2%10/21 up | +4.7%12/20 up | 0.0%9/19 up |
| RSI overbought Oct 28 | 8 | — | +0.1%4/8 up | +0.6%5/7 up | +4.0%4/7 up | -30.0%0/7 up |
| Volume spike Oct 27 | 23 | — | -2.2%9/23 up | -4.1%7/22 up | -1.5%10/22 up | -11.8%6/22 up |
| Theme selloff hindsight | — | — | — | — | — | — |
| Theme rally hindsight | — | — | — | — | — | — |
| Mention spike (Trendy) | — | — | — | — | — | — |
| Analyst upgrade | — | — | — | — | — | — |
| Analyst downgrade | — | — | — | — | — | — |
| Insider buy | — | — | — | — | — | — |
| Insider unplanned sale | 1 | — | +1.8%1/1 up | +9.0%1/1 up | +12.9%1/1 up | -15.3%0/1 up |
Median gain from the close of the session the event was known, over each holding period; Reaction day (earnings only): the session that first traded on the report, from the close before it; under it, how many of the past events were followed by a gain (12/20 up). "Big" is BOOM's own: its worst / best 10% of days over the prior 2 years. Highlighted: happening in the latest session or today, from the live quote.
Big drop (-3.8% or worse)
A daily fall among the stock's own worst 10% of the prior 2 years.
| Holding | Events | Median | Up | vs SPY | Range of outcomes (worst · 25–75% · median · best) | vs S&P 500 stocks (their medians) |
|---|---|---|---|---|---|---|
| 1 day | 60 | 0.00% | 29 of 60 | -0.68% |
-7%
+12%
|
|
| 1 week | 60 | -0.58% | 26 of 60 | -0.95% |
-25%
+62%
|
|
| 1 month | 59 ≈41 indep. | -4.91% | 23 of 59 | -8.00% |
-35%
+41%
|
|
| 1 quarter | 58 ≈15 indep. | -2.42% | 25 of 58 | -7.06% |
-44%
+53%
|
Range of outcomes: all of BOOM's big drops in the past 5 years, from the worst to the best result over each holding period; the box holds the middle half, the tick is the median. A wide box means the median alone says little. Hover the median for the average.
Big drop by trend
| When it happened | Events | 1 day | 1 week | 1 month | 1 quarter |
|---|---|---|---|---|---|
| Long trendAbove its 200-day avg now | 11 | -0.6%11 events vs -0.4% | -3.6%11 events vs -2.1% | -15.5%11 events vs -14.4% | -15.0%10 events vs -20.1% |
| Below its 200-day avg | 49 | +0.2%49 events vs 0.0% | -0.3%49 events vs +0.2% | -0.9%48 events vs +1.4% | -0.3%48 events vs -3.9% |
| Medium trendAbove its 50-day avg now | 19 | -0.1%19 events vs -0.2% | -2.1%19 events vs -1.4% | -14.7%19 events vs -12.4% | -7.2%18 events vs -14.0% |
| Below its 50-day avg | 41 | 0.0%41 events vs 0.0% | -0.3%41 events vs +0.1% | +1.1%40 events vs +5.6% | +0.3%40 events vs -4.5% |
| Short trendAbove its 20-day avg now | 19 | -0.1%19 events vs -0.1% | -2.1%19 events vs -0.3% | -10.6%19 events vs -2.5% | -8.5%19 events vs -13.6% |
| Below its 20-day avg | 41 | 0.0%41 events vs -0.2% | -0.5%41 events vs -0.8% | -4.4%40 events vs -2.5% | +0.7%39 events vs -4.8% |
The same event split by where BOOM stood against its 200-, 50- and 20-day averages when it happened (a dip in an uptrend vs a falling knife); "vs" is the plain any-day median in that trend; "now" marks where it stands today. Splitting halves the evidence: each cell shows how many past events it rests on.
Latest big drops
| Event | Entry | 1 day | 1 week | 1 month | 1 quarter | |
|---|---|---|---|---|---|---|
| Oct 22, 2026 | Oct 22 @ $5.23 | -4.2% on the day (line -3.8%) | +5.0% | +62.1% | … | … |
| Sep 1, 2026 | Sep 1 @ $6.66 | -5.8% on the day (line -3.9%) | +2.7% | +0.9% | -15.5% | … |
| Jul 23, 2026 | Jul 23 @ $6.16 | -6.7% on the day (line -3.9%) | -3.7% | +1.6% | +13.8% | -11.4% |
| Jun 23, 2026 | Jun 23 @ $6.65 | -5.5% on the day (line -3.9%) | -6.8% | -12.6% | -7.4% | -8.7% |
| May 29, 2026 | May 29 @ $6.81 | -6.1% on the day (line -3.9%) | -0.4% | -1.0% | -14.7% | +0.7% |
| May 15, 2026 | May 15 @ $6.93 | -6.0% on the day (line -3.8%) | +2.7% | -0.4% | -0.4% | +5.3% |
| May 4, 2026 | May 4 @ $7.76 | -7.7% on the day (line -3.9%) | -1.5% | -7.3% | -13.5% | -5.8% |
| Mar 11, 2026 | Mar 11 @ $4.90 | -4.3% on the day (line -3.8%) | -0.8% | 0.0% | +3.9% | +40.6% |
| Feb 24, 2026 | Feb 24 @ $5.84 | -33.0% on the day (line -3.8%) | +9.4% | -4.3% | -14.2% | +23.8% |
| Jan 30, 2026 | Jan 30 @ $8.60 | -4.1% on the day (line -3.8%) | -0.7% | -5.2% | -35.0% | -2.2% |
| Dec 15, 2025 | Dec 15 @ $6.39 | -3.9% on the day (line -3.8%) | -3.3% | +2.2% | +34.7% | -23.3% |
| Nov 13, 2025 | Nov 13 @ $5.87 | -6.7% on the day (line -3.8%) | 0.0% | -4.1% | +8.9% | +44.1% |
| Oct 31, 2025 | Oct 31 @ $8.06 | -4.7% on the day (line -3.8%) | -0.6% | -25.1% | -27.0% | +6.5% |
| Oct 10, 2025 | Oct 10 @ $7.09 | -11.9% on the day (line -3.8%) | +2.4% | +2.3% | -13.4% | +4.5% |
| Sep 10, 2025 | Sep 10 @ $6.83 | -4.1% on the day (line -3.8%) | +2.9% | +9.4% | +17.9% | -1.9% |
Aftermath: entry is the close of the first session the event was fully known (the same session for price moves, the reaction session for earnings, the next session for Reddit, analyst and insider events, which are dated by day). Repeats within a few sessions count as one event. This is history, not a forecast: in our backtests, how a stock did after its past events did not predict its next one. Not advice.