REGNRegeneron Pharmaceuticals

$805.24+42% 1Y

What is the market doing?

Mixed

No clear lean: nothing decisive, though in an uptrend.

1 good, 2 neutral
TrendUptrendderived · Oct 23, 2026

In an uptrend, above its rising 50- and 200-day averages. Overbought (RSI 74). Price is +9% vs its 200-day average.

Insider conviction−$6.5M (90 days to Oct 22, 2026)SEC EDGAR · Oct 22, 2026

Insiders were net sellers over the 90 days ending Oct 22, 2026; selling is often routine (taxes, diversification).

Short interest2.0% of sharesFINRA · Sep 30, 2026

Lightly shorted, settled Sep 30, 2026, a few days of normal trading to cover. Down 15% since the previous count, down from 3.2% of shares outstanding three months ago.

Against the whole market›

Percentile against every name Ryufin tracks. Higher is better; the tick marks the middle of the market. Context, not one of the checks above.

1-year returnbetter than 79% of the market
vs 200-day avgbetter than 71% of the market

Where this answer is blind. Insider selling is often routine (taxes, diversification); only cluster buying is a strong tell.

How REGN is trading

Regeneron Pharmaceuticals is +42% over the past year while the S&P 500 is +16%: 26 points ahead of the market.

+42%

1-year return · S&P 500 +16%

vs 200-day average
+9.4%

vs 200-day average · close to trend

RSI (14)
74

RSI (14) · overbought, bought harder than it has been sold

Below its 52-week high
5.5%

Below its 52-week high

Oct 15, 2024$480.44 – $1,008.20 · dashed line: 200-day averageOct 23, 2026
Details›
Last close2026-10-23
$805.24
1 monthS&P 500 −0.94%
+1.2%
1 yearS&P 500 +16%
+42%
5 yearsS&P 500 +86%
+49%
vs 50-day average$791.34
+1.8%
52-week high
$852.16
52-week low
$573.42
Annualised volatility
37%
Calendar-year price return
YearReturn
2026 (year to date)+4.6%
2025+9.0%
2024−19%
2023+22%
2022+14%
2021+31%
2020+29%
2019+0.53%
2018−0.65%
2017+2.4%
Average return by calendar month, 2016–2026
MonthYearsPositiveAverage
Jan104 of 10+0.40%
Feb108 of 10+2.7%
Mar106 of 10+3.2%
Apr103 of 10−4.8%
May105 of 10−0.24%
Jun108 of 10+4.1%
Jul119 of 11+4.5%
Aug117 of 11+5.2%
Sep112 of 11−3.1%
Oct115 of 11−2.0%
Nov106 of 10+3.8%
Dec104 of 10−0.61%

End-of-day closes from IEX; the S&P 500 comparison uses SPY over the same window. Prices are a reference point, not a basis for trading decisions.

Where the price stands

Its trend against the 50-day and 200-day averages, and the levels it keeps coming back to.

What it has returned

With dividends, year by year, month by month, and by calendar month on average.