PTCTPTC Therapeutics, Inc.

$60.59-9.3% 1Y

What is the market doing?

Watch

The market is leaning against it: in a downtrend (−15% vs 200-day) and heavily shorted (+11% of shares).

2 to watch, 1 neutral
TrendDowntrendderived · Oct 23, 2026

In a downtrend, below its 50- and 200-day averages. Price is −15% vs its 200-day average.

Insider conviction−$8.5M (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 interest11% of sharesFINRA · Sep 30, 2026

Heavily shorted, settled Sep 30, 2026, about a week of normal trading to cover. Down 5.9% since the previous count, down from 20.7% 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 returnbehind 73% of the market
vs 200-day avgbehind 79% of the market

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

How PTCT is trading

PTC Therapeutics, Inc. is −9.3% over the past year while the S&P 500 is +16%: 25 points behind the market.

−9.3%

1-year return · S&P 500 +16%

vs 200-day average
−15%

vs 200-day average · a clear downtrend

RSI (14)
42

RSI (14) · neutral

Below its 52-week high
32%

Below its 52-week high

Oct 15, 2024$31.66 – $89.49 · dashed line: 200-day averageOct 23, 2026
Details›
Last close2026-10-23
$60.59
1 monthS&P 500 −0.94%
−2.7%
1 yearS&P 500 +16%
−9.3%
5 yearsS&P 500 +86%
+63%
vs 50-day average$66.38
−8.7%
52-week high
$89.49
52-week low
$59.27
Annualised volatility
49%
Calendar-year price return
YearReturn
2026 (year to date)−20%
2025+68%
2024+64%
2023−28%
2022−4.2%
2021−35%
2020+27%
2019+40%
2018+106%
2017+53%
Average return by calendar month, 2016–2026
MonthYearsPositiveAverage
Jan106 of 10+8.7%
Feb105 of 10+1.9%
Mar105 of 10−3.7%
Apr105 of 10+3.9%
May105 of 10+1.1%
Jun107 of 10+9.4%
Jul116 of 11+1.6%
Aug117 of 11+5.9%
Sep115 of 11+1.4%
Oct115 of 11−6.7%
Nov107 of 10+16%
Dec105 of 10+0.91%

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.