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Upstart (UPST) Short Interest Ratio & Short Volume

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$24.33 +1.59 (+7.00%)
As of 03:14 PM Eastern
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Upstart Short Interest Overview

As of September 30, 2026, Upstart (UPST) had a short interest of 28.57 million shares sold short, representing 35.50% of the public float. This marks a 3.33% increase in short interest since the prior report. The short interest ratio (days to cover) is 6.2, meaning it would take 6.2 days of the average trading volume of 4.67 million shares to cover all short positions.

Current Short Interest
28,569,957 shares
Previous Short Interest
27,649,788 shares
Change Vs. Previous Month
3.33%
Dollar Volume Sold Short
$656.82 million
Short Interest Ratio
6.2 Days to Cover
Last Record Date
September 30, 2026
Outstanding Shares
97,313,000 shares
Short Percent of Float
35.50%
Today's Trading Volume
3,142,589 shares
Average Trading Volume
4,666,934 shares
Today's Volume Vs. Average
67%
Short Selling Upstart?
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

UPST Short Interest Over Time

UPST Days to Cover Over Time

UPST Percentage of Float Shorted Over Time

Upstart Tesla Short Interest History & Recent Changes

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
9/30/202628,569,957 shares $656.82 million +3.3%35.5%6.23 $22.99
9/15/202627,649,788 shares $698.99 million +6.6%34.4%6.86 $25.28
8/31/202625,946,861 shares $744.16 million +4.7%32.2%6.22 $28.68
8/14/202624,779,256 shares $754.03 million -1.8%30.8%4.65 $30.43
7/31/202625,223,623 shares $692.14 million -3.6%31.3%7.31 $27.44
7/15/202626,176,982 shares $826.93 million +1.3%33.1%7.13 $31.59
6/30/202625,838,509 shares $915.46 million -3.7%32.6%5.57 $35.43
6/15/202626,825,714 shares $868.08 million -3.0%33.9%5.74 $32.36
5/29/202627,642,739 shares $934.05 million +3.6%34.9%5.78 $33.79
5/15/202626,674,083 shares $787.15 million -1.1%33.7%5.01 $29.51
4/30/202626,979,293 shares $852.01 million -3.2%33.8%6.46 $31.58
4/15/202627,872,978 shares $929.84 million +0.8%35.2%6.62 $33.36
3/31/202627,640,735 shares $709.26 million -0.5%34.9%5.66 $25.66
3/13/202627,767,282 shares $731.95 million +11.5%35.1%5.17 $26.36
2/27/202624,910,913 shares $678.32 million +5.8%31.5%4.73 $27.23
2/13/202623,542,832 shares $722.29 million +3.1%29.7%3.21 $30.68
1/30/202622,841,180 shares $896.52 million +0.9%28.9%7.53 $39.25
1/15/202622,640,954 shares $1.08 billion -15.1%28.6%4.91 $47.91
12/31/202526,676,885 shares $1.17 billion +16.1%33.7%5.83 $43.73
12/15/202522,975,403 shares $1.06 billion -2.7%29.0%5.54 $46.05
11/28/202523,623,685 shares $1.07 billion -6.4%29.8%4.42 $45.12
11/14/202525,236,882 shares $977.17 million -14.7%31.1%2.87 $38.72
10/31/202529,590,889 shares $1.41 billion +3.2%36.5%4.79 $47.52
10/15/202528,680,000 shares $1.46 billion +12.8%35.8%3.9 $51.07
9/30/202525,430,000 shares $1.29 billion +16.0%N/A3.6 $50.80
9/15/202521,930,000 shares $1.47 billion +3.9%N/A3.2 $66.98
8/31/202521,100,000 shares $1.55 billion -6.1%26.3%3.2 $73.28
8/15/202522,460,000 shares $1.44 billion +28.1%N/A3.6 $64.09
7/31/202517,530,000 shares $1.43 billion -5.8%21.9%2.8 $81.74
7/15/202518,610,000 shares $1.38 billion +17.0%N/A3 $74.13
6/30/202515,910,000 shares $1.03 billion -25.1%20.1%2.8 $64.68
6/15/202521,230,000 shares $1.10 billion +0.5%26.8%3.3 $52.02
5/31/202521,120,000 shares $985.67 million +3.7%27.5%3.4 $46.67
5/15/202520,370,000 shares $965.33 million -13.0%26.5%3.2 $47.39
4/30/202523,400,000 shares $1.12 billion +0.8%N/A3.2 $47.80
4/15/202523,220,000 shares $939.25 million +13.8%30.2%3.7 $40.45
3/31/202520,410,000 shares $939.47 million +11.7%26.6%3.3 $46.03
3/15/202518,280,000 shares $887.31 million +9.3%23.8%3.2 $48.54
2/28/202516,720,000 shares $1.11 billion -6.2%21.8%2.8 $66.67
2/15/202517,820,000 shares $1.47 billion -0.6%23.2%2.9 $82.42
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1/31/202517,920,000 shares $1.16 billion -7.3%N/A2.8 $64.75
1/15/202519,320,000 shares $1.21 billion -2.7%N/A2.9 $62.70
12/31/202419,850,000 shares $1.22 billion -2.7%N/A2.8 $61.57
12/15/202420,410,000 shares $1.72 billion -5.4%N/A2.7 $84.46
11/30/202421,570,000 shares $1.70 billion -3.2%N/A2.7 $78.79
11/15/202422,290,000 shares $1.52 billion -0.9%N/A2.8 $68.36
10/31/202422,480,000 shares $1.09 billion -8.8%N/A2.9 $48.68
10/15/202424,660,000 shares $1.30 billion -2.2%N/A3.1 $52.91
9/30/202425,210,000 shares $1.01 billion +8.9%N/A3.2 $40.01
9/15/202423,160,000 shares $880.77 million -5.3%N/A3.2 $38.03
8/31/202424,450,000 shares $1.04 billion +4.2%N/A3.6 $42.50
8/15/202423,470,000 shares $858.77 million -4.6%N/A3.7 $36.59
7/31/202424,610,000 shares $687.36 million +0.2%32.0%3.9 $27.93
7/15/202424,550,000 shares $735.52 million -2.4%32.5%4.8 $29.96
6/30/202425,160,000 shares $593.52 million -3.3%33.3%5.5 $23.59
6/15/202426,010,000 shares $582.36 million +1.3%34.5%5.5 $22.39
5/31/202425,680,000 shares $634.81 million -1.3%34.1%5.4 $24.72
5/15/202426,010,000 shares $731.14 million +7.2%34.5%5.3 $28.11
4/30/202424,270,000 shares $537.10 million -6.7%32.8%4.2 $22.13
4/15/202426,020,000 shares $570.88 million -4.8%35.1%4.1 $21.94
3/31/202427,340,000 shares $735.17 million +0.8%36.9%3.8 $26.89
3/15/202427,130,000 shares $641.08 million -1.8%36.6%3.4 $23.63
2/29/202427,620,000 shares $711.22 million +4.7%37.3%2.8 $25.75
2/15/202426,380,000 shares $715.16 million -11.0%35.6%2.6 $27.11
1/31/202429,630,000 shares $941.05 million -0.9%40.7%2.9 $31.76
1/15/202429,900,000 shares $955.31 million -1.4%41.3%3.2 $31.95
12/31/202330,330,000 shares $1.24 billion -1.1%N/A3.5 $40.86
12/15/202330,680,000 shares $1.37 billion -2.7%42.4%3.8 $44.52
11/30/202331,520,000 shares $843.48 million -3.2%43.7%4.9 $26.76
11/15/202332,550,000 shares $846.30 million +7.9%45.1%5.8 $26.00
10/31/202330,160,000 shares $724.74 million +6.9%42.4%4.6 $24.03
10/15/202328,220,000 shares $765.61 million +3.5%39.7%3.7 $27.13
9/30/202327,280,000 shares $778.57 million +1.7%38.4%3.1 $28.54
9/15/202326,830,000 shares $795.24 million +2.6%37.7%2.8 $29.64
8/31/202326,140,000 shares $840.92 million +13.9%36.9%2.5 $32.17
8/15/202322,960,000 shares $760.21 million -0.1%32.4%1.9 $33.11
7/31/202322,980,000 shares $1.58 billion -11.1%32.9%1.9 $68.69
7/15/202325,860,000 shares $1.20 billion -3.8%37.4%2.5 $46.53
6/30/202326,880,000 shares $962.57 million +8.5%38.9%3 $35.81
6/15/202324,780,000 shares $934.21 million +0.9%35.9%2.9 $37.70
5/31/202324,550,000 shares $668.74 million -1.0%35.7%3.1 $27.24
5/15/202324,800,000 shares $502.45 million +9.6%36.0%3.8 $20.26
4/30/202322,630,000 shares $314.56 million -12.6%33.3%4.1 $13.90
4/15/202325,880,000 shares $398.55 million -0.7%38.1%4.2 $15.40
3/31/202326,070,000 shares $414.25 million -8.8%38.4%4 $15.89
3/15/202328,570,000 shares $433.41 million -0.4%42.1%4.5 $15.17
2/28/202328,680,000 shares $530.87 million -10.3%42.0%4.8 $18.51
2/15/202331,970,000 shares $690.23 million +13.8%46.8%5.4 $21.59
1/31/202328,090,000 shares $524.72 million +9.2%41.0%4.9 $18.68
1/15/202325,720,000 shares $436.98 million -4.2%37.5%4.9 $16.99
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12/30/202226,860,000 shares $355.09 million -1.0%39.1%5.1 $13.22
12/15/202227,140,000 shares $430.44 million +9.3%39.4%4.9 $15.86
11/30/202224,830,000 shares $485.43 million -0.4%36.1%4.1 $19.55
11/15/202224,930,000 shares $539.49 million +0.9%36.0%3.9 $21.64
10/31/202224,720,000 shares $573.01 million -5.9%35.9%3.4 $23.18
10/15/202226,260,000 shares $602.40 million -0.3%38.1%3.4 $22.94
9/30/202226,330,000 shares $547.40 million +8.2%38.2%3.4 $20.79
9/15/202224,340,000 shares $631.87 million -6.6%35.3%2.9 $25.96
8/31/202226,070,000 shares $675.21 million +0.3%37.9%3.2 $25.90
8/15/202226,000,000 shares $860.08 million +0.6%37.5%3 $33.08
7/31/202225,840,000 shares $628.69 million +0.4%35.7%2.4 $24.33
7/15/202225,750,000 shares $662.55 million +12.5%35.6%2.5 $25.73
6/30/202222,880,000 shares $723.47 million -7.4%34.3%2.1 $31.62
6/15/202224,700,000 shares $864.25 million +6.0%37.1%2.2 $34.99
5/31/202223,310,000 shares $1.17 billion -0.6%35.0%1.8 $50.40
5/15/202223,440,000 shares $893.77 million +14.8%34.7%1.7 $38.13
4/30/202220,420,000 shares $1.53 billion +7.0%30.5%1.7 $75.02
4/15/202219,080,000 shares $1.58 billion +38.1%28.5%1.6 $82.61
3/31/202213,820,000 shares $1.51 billion +11.3%20.8%1.2 $109.09
3/15/202212,420,000 shares $1.21 billion +21.4%18.7%1.2 $97.48
2/28/202210,230,000 shares $1.62 billion +10.8%15.5%1.2 $157.99
2/15/20229,230,000 shares $1.01 billion +12.4%14.0%1.2 $109.11
1/31/20228,210,000 shares $894.97 million +19.3%13.3%1.4 $109.01
1/15/20226,880,000 shares $764.44 million +22.9%11.2%1.3 $111.11
12/31/20215,600,000 shares $847.28 million +7.5%9.1%1.1 $151.30
12/15/20215,210,000 shares $803.54 million +53.2%8.5%1.1 $154.23
11/30/20213,400,000 shares $696.63 million +1.5%5.6%0.7 $204.89
11/15/20213,350,000 shares $783.16 million +2.1%5.5%0.7 $233.78
10/29/20213,280,000 shares $1.06 billion -14.8%6.0%0.6 $322.04
10/15/20213,850,000 shares $1.50 billion +1.3%7.2%0.7 $390.00

UPST Short Interest - Frequently Asked Questions

Short interest is the volume of Upstart shares that have been sold short but have not yet been covered or closed out. As of September 30th, traders have sold 28,569,957 shares of UPST short. 35.50% of Upstart's shares are currently sold short. Learn More on Upstart's current short interest.

The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. UPST shares currently have a short interest ratio of 6.2. Learn More on Upstart's short interest ratio.

Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 35.50% of Upstart's floating shares are currently sold short.

Upstart saw a increase in short interest in the month of September. As of September 30th, there was short interest totaling 28,569,957 shares, an increase of 3.3% from the previous total of 27,649,788 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment.

35.50% of Upstart's shares are currently sold short. Here is how the short interest of companies compare to Upstart: Affirm Holdings, Inc. (5.96%), SoFi Technologies, Inc. (17.07%), Fair Isaac Corporation (10.73%), Lemonade, Inc. (16.75%), FirstCash Holdings, Inc. (5.75%), OneMain Holdings, Inc. (3.46%), Credit Acceptance Corporation (9.79%), Enova International, Inc. (8.29%), Nelnet, Inc. (3.07%), Dave Inc. (23.48%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($75.10 billion), Invesco QQQ ($52.12 billion), iShares Russell 2000 ETF ($25.28 billion), SPDR S&P Biotech ETF ($11.70 billion), Nebius Group N.V. ($10.54 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($9.69 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($9.22 billion), iShares 20+ Year Treasury Bond ETF ($8.80 billion), Financial Select Sector SPDR Fund ($7.65 billion), and Lumentum Holdings Inc. ($7.23 billion). View all of the most shorted stocks.

Short selling UPST is an investing strategy that aims to generate trading profit from Upstart as its price is falling. UPST shares are trading down $1.09 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit.

A short squeeze for Upstart occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of UPST, which in turn drives the price of the stock up even further.

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including UPST, twice per month. The most recent reporting period available is September, 30 2026.

Understanding short interest metrics can help you assess how traders are positioning around a stock like UPST:

  • Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.
  • Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.
  • Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.

These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity.


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Short Interest Tools

Short interest data for NASDAQ:UPST is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 10/9/2026. FINRA publishes updated short interest twice a month.
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