CIEN

Ciena Corp

$460.72 -1.62 (-0.35%) At close · Jul 10

Market Cap

$65.22B

141,552,922

Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.

1M 3M 6M 1Y 5Y All

Short Volume

Date	Short Volume	Short Exempt	Total Volume	Short %
2026-07-10	247,123	2,320	539,639	45.8%
2026-07-09	480,305	444	911,026	52.7%
2026-07-08	442,991	16	882,276	50.2%
2026-07-07	443,361	1,345	895,057	49.5%
2026-07-06	316,994	20,153	571,679	55.4%
2026-07-02	387,814	1,808	973,033	39.9%
2026-07-01	497,990	2,004	906,280	54.9%
2026-06-30	614,611	340	996,107	61.7%
2026-06-29	674,341	41	1,509,459	44.7%
2026-06-26	816,632	285	1,502,297	54.4%
2026-06-25	868,215	892	1,518,637	57.2%
2026-06-24	566,155	3,158	1,209,115	46.8%
2026-06-23	535,943	585	1,333,534	40.2%
2026-06-22	393,786	505	1,513,190	26.0%
2026-06-18	474,571	392	1,111,714	42.7%
2026-06-17	468,916	351	917,637	51.1%
2026-06-16	840,312	1,779	1,612,450	52.1%
2026-06-15	850,458	880	1,885,096	45.1%
2026-06-12	443,635	1,309	1,084,828	40.9%
2026-06-11	568,708	920	1,332,463	42.7%
2026-06-10	772,721	26,391	1,789,729	43.2%
2026-06-09	1,506,935	62,627	3,520,470	42.8%
2026-06-08	896,212	1,971	2,512,409	35.7%
2026-06-05	850,845	74,539	1,953,182	43.6%
2026-06-04	1,370,505	110,975	3,553,600	38.6%
2026-06-03	367,034	1,641	1,080,874	34.0%
2026-06-02	310,730	1,921	1,108,941	28.0%
2026-06-01	252,636	352	1,231,322	20.5%
2026-05-29	232,376	564	1,126,600	20.6%
2026-05-28	221,838	731	764,420	29.0%
2026-05-27	202,185	1,025	675,427	29.9%
2026-05-26	217,987	15,896	594,874	36.6%
2026-05-22	193,167	10	691,547	27.9%
2026-05-21	218,997	293	625,679	35.0%
2026-05-20	281,179	120	911,683	30.8%
2026-05-19	197,328	211	1,012,166	19.5%
2026-05-18	235,105	1,219	1,208,276	19.5%
2026-05-15	189,109	2,867	877,433	21.6%
2026-05-14	176,701	820	468,642	37.7%
2026-05-13	114,988	119	465,508	24.7%
2026-05-12	206,561	585	679,242	30.4%
2026-05-11	294,374	298	863,826	34.1%
2026-05-08	235,426	18,436	611,509	38.5%
2026-05-07	558,109	8,895	1,397,861	39.9%
2026-05-06	625,098	650	992,132	63.0%
2026-05-05	338,604	85,474	637,824	53.1%
2026-05-04	213,884	105	532,091	40.2%
2026-05-01	376,413	64	807,447	46.6%
2026-04-30	530,713	899	1,044,687	50.8%
2026-04-29	205,901	782	757,833	27.2%

Showing 1–50 of 62 days

Key facts CIK 936395 CUSIP 171779309 13F (30d) 66 filings 63 filers Visit website Investor relations