Evelo Biosciences, Inc. (EVLO)
EVLO moved a median of -3.02% 30 minutes after news, and -7.74% by the close. How EVLO actually reacts to news — the realized, point-in-time move the market made, measured across 28 labeled events over the last three years with zero look-ahead.
EVLO’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 36% | 28 |
| 30-min | -3.02% | 36% | 28 |
| 60-min | -3.41% | 29% | 28 |
| to close | -7.74% | 14% | 28 |
Small sample: only 28 measured events — treat these medians as indicative, not stable.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when EVLO moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to EVLO's baseline. Nothing else.
Recent EVLO events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form EFFECT Evelo Biosciences, Inc. | SEC filing · Form EFFECT | SEC EDGAR | -5.34% | -2.29% | |
| Form 15-12G Evelo Biosciences, Inc. | SEC filing · Form 15-12G | SEC EDGAR | +0.00% | -21.74% | |
| Form 8-K Evelo Biosciences, Inc. For: Jan 26 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -21.74% | |
| Form POS AM Evelo Biosciences, Inc. | SEC filing · Form POS | SEC EDGAR | +0.00% | -21.74% | |
| Form S-8 POS Evelo Biosciences, Inc. | SEC filing · Form S-8 | SEC EDGAR | +0.00% | -21.74% | |
| Form DEF 14A Evelo Biosciences, Inc. For: Jan 26 | SEC filing · Form DEF | SEC EDGAR | +0.94% | -47.04% | |
| Form DEFA14A Evelo Biosciences, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.94% | -47.04% | |
| Form 8-K Evelo Biosciences, Inc. For: Dec 01 | SEC filing · Form 8-K | SEC EDGAR | -0.64% | +10.41% | |
| Form PRE 14A Evelo Biosciences, Inc. For: Jan 26 | SEC filing · Form PRE | SEC EDGAR | -1.03% | -0.85% | |
| Form 8-K Evelo Biosciences, Inc. For: Nov 20 | SEC filing · Form 8-K | SEC EDGAR | +6.97% | +7.54% | |
| Thinking about buying stock in Palo Alto Networks, Walgreens Boots Alliance, Peraso, Evelo Biosciences, or Safe & Green Development? | Press release | PR Newswire | -3.18% | -28.29% | |
| Form 10-Q Evelo Biosciences, Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -4.53% | -7.27% | |
| Form 8-K Evelo Biosciences, Inc. For: Oct 26 | SEC filing · Form 8-K | SEC EDGAR | -3.64% | -8.20% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the EVLO section they belong to.
Where else EVLO is measured.
EVLO earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| BIOFORCE NANOSCIENCES HLD (BFNH) | 30 | +0.30% | 50% |
| Aridis Pharmaceuticals Inc. (ARDS) | 28 | 0.00% | 48% |
| Nu-Med Plus Inc. Com (NUMD) | 28 | 0.00% | 41% |
| RESPIRERX PHARMA INC (RSPI) | 28 | 0.00% | 37% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Healthcare names, measured the same way →
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How the numbers are made.
How is Evelo Biosciences, Inc.'s median reaction calculated?
Every labeled EVLO news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 28 events is what this page reports. On a sample this small (28 events), treat these medians as indicative, not stable. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does EVLO's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.