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Banco Santander (SAN) Short Interest Ratio & Short Volume

Banco Santander logo
$13.36 +0.09 (+0.64%)
Closing price 10/2/2026 03:59 PM Eastern
Extended Trading
$13.48 +0.12 (+0.86%)
As of 10/2/2026 07:35 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Banco Santander Short Interest Overview

As of September 15, 2026, Banco Santander (SAN) had a short interest of 40.77 million shares sold short, representing 0.31% of the public float. This marks a -22.22% decrease in short interest since the prior report. The short interest ratio (days to cover) is 5.3, meaning it would take 5.3 days of the average trading volume of 6.92 million shares to cover all short positions.

Current Short Interest
40,768,871 shares
Previous Short Interest
52,415,840 shares
Change Vs. Previous Month
-22.22%
Dollar Volume Sold Short
$596.24 million
Short Interest Ratio
5.3 Days to Cover
Last Record Date
September 15, 2026
Outstanding Shares
14,689,320,000 shares
Short Percent of Float
0.31%
Today's Trading Volume
6,532,901 shares
Average Trading Volume
6,922,777 shares
Today's Volume Vs. Average
94%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

SAN Short Interest Over Time

SAN Days to Cover Over Time

SAN Percentage of Float Shorted Over Time

Banco Santander 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
9/15/202640,768,871 shares $596.24 million -22.2%0.3%5.34 $14.63
8/31/202652,415,840 shares $763.17 million -51.3%0.4%2.11 $14.56
8/14/2026107,668,073 shares $1.59 billion +21.2%0.8%7.32 $14.76
7/31/202688,817,519 shares $1.25 billion +2.4%0.7%8.66 $14.12
7/15/202686,766,064 shares $1.20 billion -0.2%0.7%9.74 $13.84
6/30/202686,977,172 shares $1.20 billion -4.9%0.7%10.86 $13.81
6/15/202691,408,001 shares $1.20 billion -4.2%0.7%10.72 $13.15
5/29/202695,360,947 shares $1.19 billion +14.5%0.7%8.86 $12.46
5/15/202683,303,993 shares $976.74 million +5.8%0.6%12.7 $11.73
4/30/202678,720,035 shares $962.51 million +0.8%0.6%10.69 $12.23
4/15/202678,087,243 shares $975.70 million -4.1%0.6%7.61 $12.50
3/31/202681,435,612 shares $919.08 million +9.9%0.6%6.27 $11.29
3/13/202674,103,742 shares $796.99 million +26.7%0.5%3.45 $10.76
2/27/202658,480,112 shares $722.52 million +39.3%0.4%3.73 $12.36
2/13/202641,984,321 shares $498.14 million +1,043.2%0.3%1.64 $11.87
1/30/20263,672,648 shares $46.81 million -6.0%0.0%0.99 $12.75
1/15/20263,905,974 shares $47.38 million +17.1%0.0%1.02 $12.13
12/31/20253,336,935 shares $39.21 million -4.8%0.0%1.43 $11.75
12/15/20253,505,419 shares $40.68 million +30.3%0.0%1.22 $11.61
11/28/20252,689,861 shares $28.84 million +2.4%0.0%0.94 $10.72
11/14/20252,626,764 shares $28.20 million +6.5%0.0%0.8 $10.74
10/31/20252,465,818 shares $25.07 million -42.7%0.0%0.78 $10.17
10/15/20254,300,000 shares $42.46 million -20.8%0.0%1.1 $9.88
9/30/20255,430,000 shares $56.96 million -34.0%0.0%1.2 $10.49
9/15/20258,230,000 shares $83.45 million -6.8%0.1%1.6 $10.14
8/31/20258,830,000 shares $84.28 million +13.6%0.1%1.5 $9.55
8/15/20257,770,000 shares $74.83 million +43.1%0.1%1.3 $9.63
7/31/20255,430,000 shares $46.73 million -47.2%0.0%0.9 $8.61
7/15/202510,290,000 shares $85.36 million +16.5%0.1%1.7 $8.30
6/30/20258,830,000 shares $73.20 million +157.4%0.1%1.4 $8.29
6/15/20253,430,000 shares $27.32 million -24.5%0.0%0.6 $7.97
5/31/20254,540,000 shares $36.18 million -23.6%0.0%0.8 $7.97
5/15/20255,940,000 shares $45.80 million +9.2%0.0%1 $7.71
4/30/20255,440,000 shares $38.08 million -5.1%0.0%0.9 $7.00
4/15/20255,730,000 shares $38.65 million +19.6%0.0%1 $6.75
3/31/20254,790,000 shares $32.12 million -3.0%0.0%0.9 $6.71
3/15/20254,940,000 shares $33.47 million -15.8%0.0%1 $6.78
2/28/20255,870,000 shares $37.48 million -7.1%0.0%1.4 $6.39
2/15/20256,320,000 shares $38.01 million +0.3%0.0%1.7 $6.02
1/31/20256,300,000 shares $31.97 million +0.2%0.0%1.9 $5.08
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1/15/20256,290,000 shares $30.63 million +0.2%0.0%2 $4.87
12/31/20246,280,000 shares $28.64 million +1.8%0.0%2.1 $4.56
12/15/20246,170,000 shares $30.29 million -33.9%0.0%2.1 $4.91
11/30/20249,340,000 shares $43.15 million +39.6%0.1%3.3 $4.62
11/15/20246,690,000 shares $32.21 million -9.5%0.0%2.4 $4.82
10/31/20247,390,000 shares $35.88 million -6.6%0.1%2.9 $4.86
10/15/20247,910,000 shares $39.59 million +12.0%0.1%3.1 $5.01
9/30/20247,060,000 shares $35.97 million -20.7%0.1%3 $5.10
9/15/20248,900,000 shares $43.52 million +20.4%0.1%4 $4.89
8/31/20247,390,000 shares $36.80 million -4.2%0.1%3.2 $4.98
8/15/20247,710,000 shares $35.81 million +13.4%0.1%3.4 $4.65
7/31/20246,800,000 shares $32.84 million +13.9%0.0%3 $4.83
7/15/20245,970,000 shares $28.60 million -5.8%0.0%2.4 $4.79
6/30/20246,340,000 shares $29.35 million -21.1%0.0%2.3 $4.63
6/15/20248,040,000 shares $37.31 million +16.7%0.1%2.8 $4.64
5/31/20246,890,000 shares $36.17 million -0.9%0.0%2.4 $5.25
5/15/20246,950,000 shares $36.35 million +10.0%0.0%2.3 $5.23
4/30/20246,320,000 shares $30.40 million -6.1%0.0%2 $4.81
4/15/20246,730,000 shares $31.33 million +10.3%0.0%2.1 $4.66
3/31/20246,100,000 shares $29.52 million -4.1%0.0%2 $4.84
3/15/20246,360,000 shares $28.11 million +1.6%0.0%2.1 $4.42
2/29/20246,260,000 shares $25.70 million -3.3%0.0%2.1 $4.11
2/15/20246,470,000 shares $25.49 million +1.6%0.0%2.2 $3.94
1/31/20246,370,000 shares $25.38 million -26.4%0.0%2.2 $3.99
1/15/20248,650,000 shares $35.64 million +3.6%0.1%3 $4.12
12/31/20238,350,000 shares $34.57 million -7.0%0.1%3 $4.14
12/15/20238,980,000 shares $36.73 million +2.8%0.1%2.8 $4.09
11/30/20238,740,000 shares $35.92 million +11.3%0.1%2.9 $4.11
11/15/20237,850,000 shares $30.97 million -1.0%0.1%2.6 $3.95
10/31/20237,930,000 shares $28.83 million +2.1%0.1%2.5 $3.64
10/15/20237,770,000 shares $28.28 million +5.4%0.1%2.3 $3.64
9/30/20237,370,000 shares $27.71 million -0.8%0.1%2.3 $3.76
9/15/20237,430,000 shares $27.27 million -1.3%0.1%2.6 $3.67
8/31/20237,530,000 shares $29.07 million -0.7%0.1%2.5 $3.86
8/15/20237,580,000 shares $29.07 million -4.7%0.1%2.5 $3.84
7/31/20237,950,000 shares $31.92 million -2.6%0.1%2.7 $4.02
7/15/20238,160,000 shares $31.33 million -10.3%0.1%2.8 $3.84
6/30/20239,100,000 shares $33.72 million +5.5%0.1%3 $3.71
6/15/20238,630,000 shares $30.21 million -9.9%0.1%2.6 $3.50
5/31/20239,580,000 shares $30.80 million -6.7%0.1%2.2 $3.22
5/15/202310,270,000 shares $34.92 million +8.3%0.1%2.1 $3.40
4/30/20239,480,000 shares $32.90 million +16.0%0.1%1.9 $3.47
4/15/20238,170,000 shares $32.03 million +7.4%0.1%1.6 $3.92
3/31/20237,610,000 shares $28.08 million +2.6%0.1%1.4 $3.69
3/15/20237,420,000 shares $25.38 million +3.1%0.1%1.4 $3.42
2/28/20237,200,000 shares $28.15 million -6.1%0.0%1.6 $3.91
2/15/20237,670,000 shares $28.46 million -9.1%0.1%1.8 $3.71
1/31/20238,440,000 shares $29.12 million +91.8%0.1%2 $3.45
1/15/20234,400,000 shares $14.83 million +14.0%0.0%1.1 $3.37
12/30/20223,860,000 shares $11.39 million -42.6%0.0%0.9 $2.95
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12/15/20226,720,000 shares $19.02 million -3.5%0.0%1.4 $2.83
11/30/20226,960,000 shares $20.60 million -28.0%0.0%1.5 $2.96
11/15/20229,670,000 shares $25.92 million +16.8%0.1%1.8 $2.68
10/31/20228,280,000 shares $21.61 million +53.9%0.1%1.6 $2.61
10/15/20225,380,000 shares $13.07 million +9.6%0.0%1 $2.43
9/30/20224,910,000 shares $11.39 million -8.7%0.0%0.8 $2.32
9/15/20225,380,000 shares $14.15 million -3.4%0.0%0.9 $2.63
8/31/20225,570,000 shares $13.42 million +8.0%0.0%0.8 $2.41
8/15/20225,160,000 shares $13.78 million -3.4%0.0%0.8 $2.67
7/31/20225,340,000 shares $13.19 million -13.6%0.0%0.7 $2.47
7/15/20226,180,000 shares $14.46 million +7.5%0.0%0.8 $2.34
6/30/20225,750,000 shares $16.10 million +26.1%0.0%0.9 $2.80
6/15/20224,560,000 shares $12.81 million +34.1%0.0%0.7 $2.81
5/31/20223,400,000 shares $10.91 million +0.3%N/A0.5 $3.21
5/15/20223,390,000 shares $9.63 million +0.6%N/A0.4 $2.84
4/30/20223,370,000 shares $9.71 million +25.3%N/A0.4 $2.88
4/15/20222,690,000 shares $9.12 million +23.4%N/A0.4 $3.39
3/31/20222,180,000 shares $7.37 million -34.5%N/A0.3 $3.38
3/15/20223,330,000 shares $10.86 million -56.8%N/A0.4 $3.26
2/28/20227,700,000 shares $25.87 million -3.1%N/A0.9 $3.36
2/15/20227,950,000 shares $31.08 million +99.3%N/A1 $3.91
1/31/20223,990,000 shares $14.04 million +4.5%N/A0.6 $3.52
1/15/20223,820,000 shares $14.10 million +83.7%N/A0.6 $3.69
12/31/20212,080,000 shares $6.84 million -21.2%N/A0.4 $3.29
12/15/20212,640,000 shares $7.87 million -39.3%N/A0.5 $2.98
11/30/20214,350,000 shares $13.53 million +7.7%N/A1.1 $3.11
11/15/20214,040,000 shares $14.62 million -39.3%N/A1.1 $3.62
10/29/20216,660,000 shares $25.24 million +25.9%N/A1.9 $3.79
10/15/20215,290,000 shares $20.63 million -28.0%N/A1.4 $3.90

SAN Short Interest - Frequently Asked Questions

Short interest is the volume of Banco Santander shares that have been sold short but have not yet been closed out or covered. As of September 15th, traders have sold 40,768,871 shares of SAN short. 0.31% of Banco Santander's shares are currently sold short. Learn More on Banco Santander'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. SAN shares currently have a short interest ratio of 5.3. Learn More on Banco Santander'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. 0.31% of Banco Santander's floating shares are currently sold short.

Banco Santander saw a decrease in short interest during the month of September. As of September 15th, there was short interest totaling 40,768,871 shares, a decrease of 22.2% from the previous total of 52,415,840 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.

0.31% of Banco Santander's shares are currently sold short. Here is how the short interest of companies in the industry of "banks" compare to Banco Santander: Bank of America Corporation (1.19%), HSBC Holdings plc (0.16%), Royal Bank Of Canada (0.18%), Mitsubishi UFJ Financial Group, Inc. (0.05%), Wells Fargo & Company (1.04%), Citigroup Inc. (1.45%), Sumitomo Mitsui Financial Group Inc (0.12%), Banco Bilbao Viscaya Argentaria S.A. (0.03%), Mizuho Financial Group, Inc. (0.07%), Bank Of Montreal (0.65%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($75.21 billion), Invesco QQQ ($46.31 billion), iShares Russell 2000 ETF ($27.98 billion), SPDR S&P Biotech ETF ($11.59 billion), Nebius Group N.V. ($9.70 billion), Canadian Natural Resources Limited ($9.42 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($8.53 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.79 billion), and Financial Select Sector SPDR Fund ($7.74 billion). View all of the most shorted stocks.

Short selling SAN is an investing strategy that aims to generate trading profit from Banco Santander as its price is falling. SAN shares are trading up $0.09 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 Banco Santander 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 SAN, 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 SAN, twice per month. The most recent reporting period available is September, 15 2026.

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

  • 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.


Related Companies
Short Interest Tools

Short interest data for NYSE:SAN is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 9/24/2026. FINRA publishes updated short interest twice a month.
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