ESPR	The short sale volume percent (not short interest) for stock ticker ESPR is 28% on Jan 15, 2026. The short sale volume is 726,032. The total volume is 2,592,333. The short sale volume percent is down -11% compare to Jan 14, 2026.

SPY IWM DIA AMZN QQQ AAPL GLD GDX GOOG FB MSFT XLK TSLA HPQ IBB USO XLF TWTR EBAY BIDU

Insider Buying

The Volume and short volume are limited. It is not including all volumes from all Market.
Date	Short Volume	Total Volume	Percent
2026-01-15	726,032	2,592,333	28%
2026-01-14	794,871	2,039,052	39%
2026-01-13	2,923,492	7,585,307	39%
2026-01-12	1,975,970	4,981,329	40%
2026-01-09	971,790	2,526,044	38%
2026-01-08	1,870,364	5,650,148	33%
2026-01-07	593,599	2,774,644	21%
2026-01-06	520,828	1,168,787	45%
2026-01-05	405,281	1,505,079	27%
2026-01-02	754,533	1,463,896	52%

Last 5 days short percent	37.48%
Last 10 days short percent	35.73%
Last 20 days short percent	37.07%
Last 50 days short percent	32.13%

Related Stock Ticker
Date	Ticker	Short Volume	Total Volume	Percent
2026-01-15	BMRN	255,458	685,220	37%
2026-01-15	FOLD	487,650	1,855,888	26%
2026-01-15	LXRX	198,728	523,124	38%
2026-01-15	PFE	11,613,265	28,299,831	41%
2026-01-15	RARE	200,268	669,063	30%
2026-01-15	REGN	79,041	324,788	24%
2026-01-15	XLV	4,545,891	5,965,847	76%