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SLS

SELLAS Life Sciences Group, Inc · Healthcare · Biotechnology
TECHSellMABuy · 10 R500#501 today TARGET+213%
$10.38 -14.71% today · -14.50% 1W
Oct 28 close or latest
After hours $10.36 -0.15% ·
Why it movedDown on Phase 3 leukemia trial milestoneReadout ›
Latest session Mention spike (Trendy) 42 mentions vs 2.7/day the week before
After its 6 mention spikes in the past 5 years, SLS was higher a day later 4 times out of 6; half the outcomes fell between -1.0% and +15.0%. History, not a forecast.
See the aftermath
Latest session Big drop -14.7% on the day (line -6.0%)
After its 67 big drops in the past 5 years, SLS was higher a week later 36 times out of 67; half the outcomes fell between -6.2% and +7.6%. History, not a forecast.
See the aftermath
Latest session Volume spike 4.1x average volume, -14.7% on the day
After its 29 volume spikes in the past 5 years, SLS was higher a week later 12 times out of 29; half the outcomes fell between -8.2% and +11.2%. History, not a forecast.

After each kind of event

EventEventsReaction day1 day1 week1 month1 quarter
Any day 1,254 — 0.0%584/1253 up 0.0%600/1249 up +1.3%642/1233 up +0.9%605/1191 up
Big drop latest session (-6.1% or worse) 68 — +0.1%34/67 up +0.9%36/67 up +2.6%34/65 up +5.7%35/62 up
Big gain (+7.8% or better) 63 — 0.0%29/63 up +1.6%35/63 up +1.9%33/62 up +3.9%34/60 up
Earnings beat 9 -1.3%2/9 up +2.5%5/9 up 0.0%4/9 up +7.5%6/9 up +12.5%6/9 up
Earnings miss 9 -2.2%3/9 up +4.0%5/9 up +4.8%5/9 up +2.0%5/9 up -6.8%3/8 up
52-week high 7 — -1.7%3/7 up +18.0%5/7 up -5.7%3/7 up +46.7%4/6 up
52-week low 5 — +3.4%4/5 up -6.9%2/5 up +5.2%3/5 up -8.2%2/5 up
Crossed above 200-day avg 9 — -3.3%1/9 up +0.9%6/9 up -4.9%4/9 up +5.2%5/9 up
Crossed below 200-day avg 8 — -0.9%3/8 up -0.7%4/8 up +1.1%4/8 up +24.9%7/8 up
RSI oversold 10 — -1.9%3/10 up -7.0%3/10 up +4.9%7/10 up +13.4%6/10 up
RSI overbought 15 — -0.9%7/15 up +5.9%10/15 up -12.3%5/15 up +13.8%8/15 up
Volume spike latest session 30 — -1.2%13/29 up -2.7%12/29 up -5.2%13/28 up -5.7%12/28 up
Theme selloff hindsight — — — — — —
Theme rally hindsight — — — — — —
Mention spike (Trendy) latest session 6 — +13.8%4/6 up +13.0%4/6 up -8.6%2/6 up +32.0%4/5 up
Analyst upgrade — — — — — —
Analyst downgrade — — — — — —
Insider buy 1 — -7.1%0/1 up -10.3%0/1 up +83.2%1/1 up +217.4%1/1 up
Insider unplanned sale — — — — — —

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 SLS'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.

Volume spike

Volume at least 3x the prior 20 sessions' average.

HoldingEventsMedianUpvs SPYRange of outcomes (worst · 25–75% · median · best)vs S&P 500 stocks (their medians)
1 day 29 -1.19% 13 of 29 -0.80%
1 week 29 -2.73% 12 of 29 -3.94%
1 month 28 ≈26 indep. -5.18% 13 of 28 -7.11%
1 quarter 28 ≈16 indep. -5.66% 12 of 28 -12.60%

Range of outcomes: all of SLS's volume spikes 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.

Volume spike by trend

When it happenedEvents1 day1 week1 month1 quarter
Long trendAbove its 200-day avg now 16 +1.1%15 events vs 0.0% -3.2%15 events vs 0.0% -0.8%14 events vs -0.2% -2.8%14 events vs +5.0%
Below its 200-day avg 10 -3.1%10 events vs 0.0% -4.8%10 events vs 0.0% -3.5%10 events vs +5.2% +7.9%10 events vs +2.7%
Medium trendAbove its 50-day avg 16 -1.8%16 events vs 0.0% -2.0%16 events vs -0.7% -9.5%16 events vs -4.7% +1.1%16 events vs -0.8%
Below its 50-day avg now 14 0.0%13 events vs 0.0% -3.3%13 events vs +0.9% +3.0%12 events vs +9.8% -12.7%12 events vs +3.4%
Short trendAbove its 20-day avg 15 -2.3%15 events vs 0.0% -1.2%15 events vs 0.0% -13.3%15 events vs -4.3% -2.4%15 events vs -1.9%
Below its 20-day avg now 15 +0.6%14 events vs 0.0% -3.0%14 events vs 0.0% +5.7%13 events vs +7.0% -8.2%13 events vs +5.2%

The same event split by where SLS 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 volume spikes

EventEntry1 day1 week1 month1 quarter
Oct 28, 2026 Oct 28 @ $10.38 4.1x average volume, -14.7% on the day … … … …
Oct 16, 2026 Oct 16 @ $9.98 3.0x average volume, -12.0% on the day +5.1% +15.6% … …
Jun 29, 2026 Jun 29 @ $15.45 3.6x average volume, +24.7% on the day -4.5% -12.6% -34.6% -25.0%
May 21, 2026 May 21 @ $7.56 3.3x average volume, -15.7% on the day +2.9% +23.1% +20.0% +104.5%
May 13, 2026 May 13 @ $6.53 6.8x average volume, +25.1% on the day +13.6% +37.4% +19.9% +89.3%
Mar 20, 2026 Mar 20 @ $4.76 4.0x average volume, -8.5% on the day +15.1% -8.2% +5.7% +79.2%
Dec 29, 2025 Dec 29 @ $3.35 3.7x average volume, +16.7% on the day -1.2% +22.4% +16.1% +26.3%
Oct 20, 2025 Oct 20 @ $2.01 5.7x average volume, -6.1% on the day -5.0% -3.5% -20.9% +127.9%
Jul 15, 2025 Jul 15 @ $1.90 3.0x average volume, -4.0% on the day +1.1% -3.2% -18.4% +5.3%
Jun 27, 2025 Jun 27 @ $1.95 6.0x average volume, -3.9% on the day +12.3% +11.3% -13.3% -16.4%
Jan 23, 2025 Jan 23 @ $0.99 19.5x average volume, -13.2% on the day +2.0% +34.3% +17.2% +35.4%
Oct 15, 2024 Oct 15 @ $1.20 3.1x average volume, -4.0% on the day +4.2% -3.3% +5.8% -18.3%
Jul 30, 2024 Jul 30 @ $1.25 3.8x average volume, +2.5% on the day -7.2% -6.4% +4.0% -2.4%
Jun 14, 2024 Jun 14 @ $1.50 5.8x average volume, +3.5% on the day -16.7% -19.3% -26.7% -13.3%
May 1, 2024 May 1 @ $1.28 6.3x average volume, +3.2% on the day +5.5% 0.0% +10.2% -3.1%

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.