A quick note on timing. The figures on this page come from different places and refresh on different clocks. Exchange short interest is reported twice a month, FINRA short volume lands every trading day, SEC fails to deliver arrive about two weeks late, and borrow numbers move throughout the day, so two figures here can carry different as of dates. Anything tagged PREVIEW is sample data while we finish wiring its live feed. Prices are delayed 15 minutes. This page is for education, not investment advice.

PTC Inc (PTC) Short Interest, Short Squeeze & Borrow Rates ● LIVE

PTC Inc · NASDAQ · Technology

$127.55+2.34 (+1.87%)

15-min delayed · Jul 28, 3:45 PM ET · Get real-time quotes →

About 1.74M shares of PTC Inc are sold short, or roughly 13.28% of the float. At recent volume that works out to about 2.20 days to cover, with a borrow fee near 26.38% and a squeeze score of 30.0 out of 100. No single number tells you whether a squeeze is coming, so it helps to read the whole picture below.

Basic stats

Short Interest

1,742,311 shares

source: NASDAQ / EODHD

Short Interest Ratio

2.20 days to cover

source: NASDAQ / EODHD

Short Interest % Float

13.28%

source: NASDAQ · Capital IQ (float)

Off-Exch. Short Volume

196,990 shares

source: FINRA (inc. dark pool)

Off-Exch. Short Vol %

36.40%

source: FINRA (inc. dark pool)

Introduction

This page gathers everything we track on the short side of PTC Inc (PTC) in one place, ordered by how quickly each number changes. The fastest moving figures, like the borrow fee, sit near the top. Daily figures such as short volume and fails to deliver come next. The slowest data, the official short interest that exchanges publish twice a month, sits at the bottom. Reading it top to bottom gives you a feel for what is happening right now versus what has built up over time.

Short squeeze score

Updates intraday

Moderate squeeze risk

PTC scores 30 out of 100. The biggest factor is borrow fee at 26.4% (elevated); days to cover of 2.20 is moderate and a borrow fee near 26.4% is elevated. Short-side pressure is middling and nothing here points to an imminent squeeze.

Short interest % float13.3%Moderate

Days to cover2.20Moderate

Borrow fee26.4%Elevated

A relative reading versus other stocks, not a prediction. It weighs short interest, float, days to cover and the cost to borrow into one 0–100 number where 50 is the middle of the pack.

Low

Moderate

Elevated

High

Extreme

30.00

0 · less crowded50 · average100 · most crowded

Short interest over time

NASDAQ · Capital IQ (float)Updates twice monthlyPREVIEW

Placeholder data, not real PTC figures. We are still wiring the short interest history feed, so the numbers below are illustrative sample values used to show the layout. Do not rely on them. This section will switch to live data once the feed lands.

Reported short interest for PTC at each date, shown with days to cover and short interest as a percent of float. Short interest updates twice a month; the percentages are recomputed as float changes.

Date	Short Interest	Days to Cover	SI % Float	Float (MM)	Shares Out (MM)
2026-07-19	1,527,919	2.26	13.17%	13.12	16.81
2026-07-04	1,531,536	2.52	13.26%	13.12	16.81
2026-06-19	1,872,526	2.65	14.84%	13.12	16.81
2026-06-04	1,652,247	2.06	15.12%	13.12	16.81
2026-05-20	1,655,157	2.23	13.11%	13.12	16.81
2026-05-05	1,954,981	2.16	12.63%	13.12	16.81
2026-04-20	1,835,302	2.12	14.20%	13.12	16.81
2026-04-05	1,983,344	3.01	14.67%	13.12	16.81

Short interest (official NASDAQ settlement)

NASDAQUpdates twice monthlyPREVIEW

Placeholder data, not real PTC figures. We are still wiring the official settlement feed, so the numbers below are illustrative sample values used to show the layout. Do not rely on them. This section will switch to live data once the feed lands.

The raw short interest NASDAQ publishes at each settlement date, with the publication date and the change from the prior period. These are the exchange own figures and are not adjusted for stock splits.

Settlement Date	Publication Date	Short Interest	Percent Change	SI Ratio (DTC)	Float (MM)	SI % Float
2026-07-19	2026-07-29	1,742,311	0.00%	1.84	13.97	12.47
2026-07-04	2026-07-14	1,985,089	-13.93%	3.73	15.52	12.79
2026-06-19	2026-06-29	1,803,298	9.16%	2.24	12.57	14.34
2026-06-04	2026-06-14	2,082,652	-15.49%	4.73	14.69	14.18
2026-05-20	2026-05-30	2,070,483	0.58%	4.43	12.12	17.08
2026-05-05	2026-05-15	1,986,109	4.08%	2.63	15.15	13.11
2026-04-20	2026-04-30	1,834,095	7.65%	2.68	12.10	15.16
2026-04-05	2026-04-15	1,683,744	8.20%	3.74	14.79	11.39
2026-03-21	2026-03-31	1,575,059	6.45%	1.84	14.59	10.80
2026-03-06	2026-03-16	1,466,526	6.89%	4.72	13.25	11.07
2026-02-19	2026-03-01	1,471,965	-0.37%	3.33	13.64	10.79
2026-02-04	2026-02-14	1,403,744	4.63%	3.33	13.36	10.50

Short sale volume (FINRA)

FINRAUpdates daily at close

How many PTC shares were sold short off exchange each day, summed across the reporting venues we track. It includes market maker hedging and other routine activity, so a high reading is normal and is not the same as outstanding short interest.

Market Date	Non-Exempt Vol	Exempt Vol	Short Vol	Total Vol	Short Vol Ratio
2026-07-28	196,986	4	196,990	541,741	36.4%
2026-07-27	414,158	112	414,270	765,931	54.1%
2026-07-24	289,992	1,027	291,019	676,016	43.0%
2026-07-23	641,697	0	641,697	1,461,071	43.9%
2026-07-22	655,432	20	655,452	2,116,040	31.0%
2026-07-21	269,420	61	269,481	451,528	59.7%
2026-07-20	601,538	6	601,544	1,070,580	56.2%
2026-07-17	231,616	10	231,626	489,150	47.4%
2026-07-16	470,309	16	470,325	935,300	50.3%
2026-07-15	399,821	3,498	403,319	689,784	58.5%
2026-07-14	399,960	180	400,140	746,002	53.6%
2026-07-13	404,258	116	404,374	645,050	62.7%
2026-07-10	229,826	22	229,848	343,817	66.9%
2026-07-09	268,975	125	269,100	472,674	56.9%
2026-07-08	545,742	840	546,582	1,049,605	52.1%
2026-07-07	522,070	6	522,076	911,742	57.3%
2026-07-06	217,074	8,017	225,091	530,694	42.4%
2026-07-02	717,767	930	718,697	1,476,897	48.7%
2026-07-01	572,653	526	573,179	1,877,630	30.5%
2026-06-30	307,758	590	308,348	1,163,410	26.5%
2026-06-29	473,720	4,798	478,518	1,118,997	42.8%
2026-06-26	258,887	10	258,897	1,222,294	21.2%
2026-06-25	295,504	336	295,840	1,498,514	19.7%
2026-06-24	247,563	716	248,279	1,137,630	21.8%
2026-06-23	389,383	82	389,465	1,152,526	33.8%
2026-06-22	788,882	1,898	790,780	1,824,895	43.3%
2026-06-18	459,125	140	459,265	1,311,689	35.0%
2026-06-17	388,830	756	389,586	1,601,346	24.3%
2026-06-16	303,630	218	303,848	1,221,621	24.9%
2026-06-15	543,383	102	543,485	1,868,090	29.1%

Short sale volume (combined exchange and off-exchange)

FINRA, PSX/BXUpdates daily at closePREVIEW

Placeholder data, not real PTC figures. We are still wiring the per-venue combined volume feed, so the numbers below are illustrative sample values used to show the layout. Do not rely on them. This section will switch to live data once the feed lands.

Off-exchange volume combined with the on-exchange venues we track. The aggregate columns cover those venues only, not every place PTC trades, so treat the totals as a representative sample rather than a full market count.

Market Date	FINRA Short	PSX/BX Short	Aggregate Short	Aggregate Total	Agg Short Ratio
2026-07-29	628,425	4,317	632,742	1,044,027	60.6%
2026-07-28	352,024	3,406	355,430	649,385	54.7%
2026-07-27	323,731	5,328	329,059	568,254	57.9%
2026-07-24	559,583	9,683	569,266	929,806	61.2%
2026-07-23	362,480	334	362,814	721,500	50.3%
2026-07-22	646,393	2,405	648,798	1,063,314	61.0%
2026-07-21	488,356	3,140	491,496	928,300	52.9%
2026-07-20	402,675	4,162	406,837	688,511	59.1%
2026-07-17	371,874	7,424	379,298	743,134	51.0%
2026-07-16	469,284	5,511	474,795	824,944	57.6%

Fails-to-deliver

SECUpdates twice monthly, delayed

PTC shares that did not settle on time, reported by the SEC. Each figure is a running balance on a given date rather than a daily tally, and it is not added up across dates. Fails happen for many ordinary reasons and are not on their own a sign of anything improper.

Settlement Date	Price	Quantity	Value
2026-06-16	$114.85	565	$64,890.25
2026-06-12	$118.39	13,962	$1,652,961.18
2026-06-05	$138.79	1,834	$254,540.86
2026-06-01	$138.73	115	$15,953.95
2026-05-20	$145.19	19,786	$2,872,729.34
2026-05-19	$144.06	29,835	$4,298,030.10
2026-05-11	$146.65	246	$36,075.90
2026-05-08	$147.65	455	$67,180.75
2026-04-28	$136.41	82	$11,185.62
2026-04-24	$135.83	257	$34,908.31
2026-04-22	$140.93	404	$56,935.72
2026-04-21	$140.75	13,225	$1,861,418.75
2026-04-16	$136.58	2,049	$279,852.42
2026-04-10	$139.19	1,513	$210,594.47
2026-03-27	$144.01	65	$9,360.65
2026-03-26	$143.56	13,573	$1,948,539.88
2026-03-25	$142.96	1,519	$217,156.24
2026-03-23	$149.81	207	$31,010.67
2026-03-12	$159.13	27	$4,296.51
2026-03-05	$162.97	393	$64,047.21
2026-02-24	$150.88	4	$603.52
2026-02-18	$153.07	9,877	$1,511,872.39
2026-02-17	$156.77	2,225	$348,813.25
2026-01-08	$174.57	13,064	$2,280,582.48

Short shares availability

Prime brokerage sampleUpdates intradayPREVIEW

Placeholder data, not real PTC figures. We are still wiring the share availability feed, so the numbers below are illustrative sample values used to show the layout. Do not rely on them. This section will switch to live data once the feed lands.

How many PTC shares one large prime broker had available to lend at each timestamp. It is a sample of a single lender, not the total shortable pool and not the short interest, but the direction over a day or two is a useful read on demand. Last update 7 minutes ago.

Time Since Last Change	Timestamp (UTC)	PTC Short Shares Availability
42 minutes ago	2026-07-29 04:00 UTC	200,000
2 hours ago	2026-07-29 03:07 UTC	150,000
6 hours ago	2026-07-28 23:14 UTC	100,000
6 hours ago	2026-07-28 23:21 UTC	150,000
7 hours ago	2026-07-28 22:28 UTC	200,000
8 hours ago	2026-07-28 21:35 UTC	250,000
11 hours ago	2026-07-28 18:42 UTC	700
15 hours ago	2026-07-28 14:49 UTC	900
17 hours ago	2026-07-28 12:56 UTC	500
20 hours ago	2026-07-28 09:03 UTC	400

Cost to borrow

Lending feedUpdates intraday

The annualized rate a short seller pays to borrow PTC. The latest reading is 26.38%. A high or rising fee means shares are getting harder and more expensive to short, which is one of the conditions that can feed a squeeze.

Date	Borrow Fee
2026-07-28	26.38%
2026-07-27	26.41%
2026-07-24	26.56%
2026-07-23	26.61%
2026-07-22	26.67%
2026-06-08	32.66%
2026-06-05	33.61%
2026-06-04	34.07%
2026-06-03	34.47%
2026-06-02	34.82%
2026-06-01	35.12%
2026-05-29	35.53%
2026-05-28	35.28%
2026-05-27	35.00%
2026-05-26	34.70%
2026-05-25	34.90%
2026-05-22	35.02%
2026-05-21	35.13%
2026-05-20	35.27%
2026-05-19	35.43%
2026-05-18	35.61%
2026-05-15	35.82%
2026-05-14	35.94%
2026-05-13	36.10%

PTC short interest FAQ

How much of PTC is sold short right now?+

About 1,742,311 shares of PTC Inc are currently sold short, which is roughly 13.28% of the float. At recent trading volume that would take around 2.20 days to buy back. Exchanges publish this figure twice a month, so it moves in steps rather than continuously.

What does the PTC squeeze score mean?+

It is a single reading from 0 to 100, with 50 as the middle of the pack, that blends short interest, float, days to cover, the borrow fee and a few other signals. PTC currently sits at 30.00, which we read as moderate squeeze risk. A higher score means a more crowded setup, not a promise that the stock will squeeze.

Is short volume the same as short interest?+

No, and it is a common mix up. Short interest counts open short positions at a settlement date and updates twice a month. Short volume counts shares traded short on a single day and updates daily. A stock can show heavy short volume from routine market making without its open short interest going up at all.

What are fails to deliver?+

They are shares that did not change hands by the settlement date, reported by the SEC on a delay. The number is a running balance on a given date, not a daily count, so you should not add it up across dates. Fails happen for many ordinary reasons and are not on their own a sign of anything improper.

What does the borrow fee tell me?+

It is the yearly rate a short seller pays to borrow the stock, and PTC is near 26.38% right now. When the fee is high and shares are hard to find, shorting gets expensive and harder to hold, which is one of the ingredients that can feed a squeeze.

How often does this data update?+

It depends on the source. Official short interest lands twice a month, FINRA short volume every trading day, SEC fails to deliver about two weeks late, and borrow figures through the day. Each section on this page shows its own as of date so you can see how fresh it is.

This page is for education and is not investment advice. Short interest, short volume, fails to deliver and borrow figures come from separate reporting systems with different as of dates and methods, and none of them on its own proves any wrongdoing or predicts where the price will go. Numbers can differ from other sites because of how float is measured, when each source reports, which venues are covered, and corporate actions like splits. Always do your own research and talk to a licensed financial advisor before you trade.

Introduction