Red List
RGEN
Repligen Corporation
Healthcare · Medical Instruments & Supplies · mid-cap ($6.7B)
-41.2%
from rolling 252-day high of $175.77 set 2026-01-06 · 128d ago
Current
$103.38
Decline depth
-41.2%
Decline σ
7.5σ
TFC
3/5 bearish
Rolling 252-day high Up day Down day Last 90 trading days · data from Alpaca

Structural break signals

RGEN qualifies for the Red List on decline depth.

Decline depth
-41.2%
From rolling 252-day high of $175.77, 128d ago. Past the 40% Red List threshold.
Time-frame continuity
3/5 bearish
Latest bar across daily/weekly/monthly/quarterly/yearly time frames. A bar counts as bearish when it's a 2-Down or a red 3. Past the 3/5 Watch threshold.
Decline sigma
7.5σ
Drop from local high over the last 20 bars, expressed in units of the stock's typical daily volatility (3.83% per day). Past the ≥6σ Amber threshold.

The structural read

What price action says about RGEN.

RGEN qualifies for the Red List on decline depth — down -41.2% from its rolling 252-day high. Past the 40% threshold, the deepest tier in the taxonomy.

Cross-confirmation: also showing 3/5 bearish time frames.

Cross-confirmation: decline sigma also reads 7.5σ over 20 bars.

Earnings on file: 2026-05-05. Tiering is unaffected by earnings dates — listings reflect price structure only.

52-week range

52W low $109.50 0.0% of range 52W high $175.77

Sector context · Healthcare

182 other Healthcare tickers are on Broken Stocks.

92 Red List
43 Amber
47 Watch
-35.8% Median decline

Worst in sector: OPRX (-76.7%). Least-bad: ANIP (-20.0%). See all Healthcare listings →

Questions about RGEN

What people ask.

Why is RGEN on Broken Stocks?

RGEN qualifies for the Red List on decline depth. It is down -41.2% from its rolling 252-day high of $175.77, set on 2026-01-06 — 128d ago.

Is RGEN a falling knife?

Not by the strict technical definition. RGEN is down -41.2% from its 52-week high, but that high was set 128d ago — more than 120 days. A falling knife is usually a recent breakdown from a fresh high, not an established multi-quarter downtrend. RGEN is still on the Red List for decline depth, but the freshness component of a falling knife is missing.

Is RGEN a buy?

Broken Stocks does not issue buy or sell recommendations. The list is a rules-based technical warning system. It tracks structural decline depth and recency — not company quality, management, fundamentals, or news. Always do your own research and consult a licensed advisor.

Where is RGEN trading inside its 52-week range?

At $103.38, RGEN sits 0.0% of the way from its 52-week low ($109.50) to its 52-week high ($175.77). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.

How fast has RGEN been declining?

The current 41.2% decline accrued over 128d, which annualizes to roughly -117.5% per year. Annualized pace is a sanity check — a 30% decline in three months is a different signal than a 30% decline over two years.

How does RGEN compare to its sector?

There are 182 other Healthcare tickers on Broken Stocks: 92 Red, 43 Amber, 47 Watch, with 55 showing recovering structural signals. Median sector decline is -35.8% — RGEN's decline is deeper than the sector median.

Does RGEN's earnings date affect its tier?

No. Tiering is decided purely by decline depth and recency of the rolling-high date. The earnings date on file (2026-05-05) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.