Watch

REGNRegeneron Pharmaceuticals, Inc.

Healthcare · Biotechnology · large-cap ($64.9B)
-20.5%
from rolling 252-day high of $818.90 set 2026-01-09 · 194d ago
Current
$651.18
Decline depth
-20.5%
Decline σ
3.2σ
TFC
2/5 bearish
Rolling 252-day high Up day Down day Last 90 trading days · data from Alpaca

Since it joined the list

$REGN landed on the list 2026-05-18, down 23.3% from its 52-week high that day — now down -20.5%.

It has clawed back 3.2 percentage points off that level. It bottomed 26.8% below that high along the way.

Decline from the 52-week high as it stood on 2026-05-18 (fixed anchor) → today. Split-adjusted, Alpaca. Observed history, not a forecast.

Structural break signals

REGN qualifies for the Watch on decline depth.

Decline depth
-20.5%
From rolling 252-day high of $818.90, 194d ago. Past the 20% Watch threshold.
Time-frame continuity
2/5 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.
Decline sigma
3.2σ
Drop from local high over the last 5 bars, expressed in units of the stock's typical daily volatility (1.93% per day).

The structural read

What price action says about REGN.

REGN qualifies for the Watch on decline depth — down -20.5% from its rolling 252-day high.

Upstream TFC read: weak alignment, current phase daily. Last bar types — daily 2D (red), weekly 1 (red), monthly 2U (green).

Earnings on file: 2026-04-29. Tiering is unaffected by earnings dates — listings reflect price structure only.

52-week range

52W low $476.49 50.7% of range 52W high $821.11

Sector context · Healthcare

157 other Healthcare tickers are on Broken Stocks.

72 Red List
39 Amber
46 Watch
-35.1% Median decline

Worst in sector: KRRO (-79.1%). Least-bad: TBPH (-20.1%). See all Healthcare listings →

Questions about REGN

What people ask.

Why is REGN on Broken Stocks?

REGN qualifies for the Watch on decline depth. It is down -20.5% from its rolling 252-day high of $818.90, set on 2026-01-09 — 194d ago.

Is REGN a falling knife?

No. The falling-knife label usually implies a steep, severe drop — typically 30% or more from a fresh high. REGN is down -20.5% from its 52-week high, which qualifies for the Watch tier but is shallower than the falling-knife pattern. It's an early-stage decline rather than a sharp breakdown.

Is REGN 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 REGN trading inside its 52-week range?

At $651.18, REGN sits 50.7% of the way from its 52-week low ($476.49) to its 52-week high ($821.11). A reading below 25% indicates price is hugging the bottom of the range; above 75%, the top.

How fast has REGN been declining?

The current 20.5% decline accrued over 194d, which annualizes to roughly -38.6% 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 REGN compare to its sector?

There are 157 other Healthcare tickers on Broken Stocks: 72 Red, 39 Amber, 46 Watch, with 22 showing recovering structural signals. Median sector decline is -35.1% — REGN's decline is shallower than the sector median.

Does REGN'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 (2026-04-29) is shown for reference only — listings can move tier between scans based on closing prices, regardless of fundamentals or news events.