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American Century Short Duration Strategic Income ETF (SDSI) Short Interest Ratio & Short Volume

American Century Short Duration Strategic Income ETF logo
$50.60 -0.18 (-0.35%)
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American Century Short Duration Strategic Income ETF Short Interest Overview

As of August 31, 2026, American Century Short Duration Strategic Income ETF (SDSI) had a short interest of 17,124 shares sold short, representing 0.36% of the public float. This marks a 0.05% increase in short interest since the prior report. The short interest ratio (days to cover) is 0.4, meaning it would take 0.4 days of the average trading volume of 26,622 shares to cover all short positions.

Current Short Interest
17,124 shares
Previous Short Interest
17,116 shares
Change Vs. Previous Month
0.05%
Dollar Volume Sold Short
$876.58 thousand
Short Interest Ratio
0.4 Days to Cover
Last Record Date
August 31, 2026
Outstanding Shares
5,850,000 shares
Short Percent of Float
0.36%
Today's Trading Volume
18,213 shares
Average Trading Volume
26,622 shares
Today's Volume Vs. Average
68%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

SDSI Short Interest Over Time

SDSI Days to Cover Over Time

SDSI Percentage of Float Shorted Over Time

American Century Short Duration Strategic Income ETF 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
8/31/202617,124 shares $876.58 thousand +0.1%0.4%0.41 $51.19
8/14/202617,116 shares $876.34 thousand +16.8%0.4%0.34 $51.20
7/31/202614,651 shares $749.98 thousand -50.2%0.3%0.45 $51.19
7/15/202629,410 shares $1.51 million +18.6%0.6%1.22 $51.22
6/30/202624,805 shares $1.27 million +66.2%0.5%1.01 $51.35
6/15/202614,921 shares $765.60 thousand -28.1%0.4%0.56 $51.31
5/29/202620,739 shares $1.07 million +13.2%0.6%0.9 $51.43
5/15/202618,317 shares $937.65 thousand -93.9%0.5%1.52 $51.19
4/30/2026300,671 shares $15.47 million +3,530.0%8.0%6.67 $51.44
4/15/20268,283 shares $425.75 thousand -24.6%0.2%0.82 $51.40
3/31/202610,979 shares $563.11 thousand -55.6%0.2%0.72 $51.29
3/13/202624,728 shares $1.27 million +27.6%0.7%0.8 $51.19
2/27/202619,381 shares $1.00 million +77.5%0.5%1.15 $51.83
2/13/202610,922 shares $565.54 thousand -46.5%0.3%0.64 $51.78
1/30/202620,409 shares $1.06 million -1.0%0.6%0.96 $51.84
1/15/202620,610 shares $1.06 million +113.7%0.6%0.89 $51.67
12/31/20259,646 shares $497.54 thousand -15.5%0.3%0.22 $51.58
12/15/202511,415 shares $589.70 thousand -29.2%0.5%0.51 $51.66
11/28/202516,112 shares $833.63 thousand -24.1%0.7%1.49 $51.74
11/14/202521,235 shares $1.09 million +27.8%0.9%1.78 $51.55
10/31/202516,617 shares $860.10 thousand -50.1%0.7%0.83 $51.76
10/15/202533,300 shares $1.72 million -4.0%1.4%1.1 $51.67
9/30/202534,700 shares $1.79 million +160.9%N/A1.2 $51.72
9/15/202513,300 shares $687.16 thousand +17.7%N/A0.5 $51.67
8/31/202511,300 shares $583.70 thousand +24.2%0.7%0.9 $51.66
8/15/20259,100 shares $468.23 thousand -4.2%N/A1.3 $51.45
7/31/20259,500 shares $488.21 thousand +35.7%0.6%1.4 $51.39
7/15/20257,000 shares $358.12 thousand +105.9%N/A1 $51.16
6/30/20253,400 shares $175.10 thousand -45.2%0.2%0.3 $51.50
6/15/20256,200 shares $316.76 thousand +121.4%0.4%0.6 $51.09
5/31/20252,800 shares $143.64 thousand +21.7%0.2%0.3 $51.30
5/15/20252,300 shares $117.28 thousand +283.3%0.2%0.2 $50.99
4/30/2025600 shares $30.80 thousand -45.5%N/A0 $51.33
4/15/20251,100 shares $55.90 thousand -71.8%0.1%0.1 $50.82
3/31/20253,900 shares $200.15 thousand -61.4%0.2%0.3 $51.32
3/15/202510,100 shares $516.51 thousand +225.8%0.7%1.1 $51.14
2/28/20253,100 shares $159.40 thousand -56.9%0.2%0.4 $51.42
2/15/20257,200 shares $368.21 thousand -34.6%0.5%0.9 $51.14
1/31/202511,000 shares $563.42 thousand -29.5%N/A1.6 $51.22
1/15/202515,600 shares $795.29 thousand +766.7%N/A2.9 $50.98
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12/31/20241,800 shares $91.55 thousand -40.0%N/A0.2 $50.86
12/15/20243,000 shares $153.29 thousand +114.3%N/A0.4 $51.10
11/30/20241,400 shares $71.77 thousand -92.9%N/A0.2 $51.27
11/15/202419,700 shares $1.01 million +418.4%N/A2.6 $51.04
10/31/20243,800 shares $195.02 thousand -30.9%N/A0.6 $51.32
10/15/20245,500 shares $282.98 thousand +57.1%N/A0.9 $51.45
9/30/20243,500 shares $181.65 thousand -35.2%N/A1.1 $51.90
9/15/20245,400 shares $279.99 thousand +285.7%N/A1.6 $51.85
8/31/20241,400 shares $72.35 thousand +75.0%N/A0.3 $51.68
8/15/2024800 shares $41.14 thousand -46.7%N/A0.1 $51.42
7/31/20241,500 shares $77.09 thousand +1,400.0%N/A0.1 $51.40
7/15/2024100 shares $5.11 thousand -92.3%N/A0 $51.13
6/30/20241,300 shares $66.18 thousand -93.5%N/A0.1 $50.91
6/15/202419,900 shares $1.01 million +161.8%N/A2 $50.86
5/31/20247,600 shares $386.16 thousand -54.5%N/A0.8 $50.81
5/15/202416,700 shares $849.28 thousand +138.6%N/A2.8 $50.86
4/30/20247,000 shares $354.52 thousand -28.6%N/A1.1 $50.65
4/15/20249,800 shares $495.24 thousand +2.1%N/A1.6 $50.54
3/15/202410,200 shares $517.19 thousand +2,450.0%N/A1.5 $50.71
2/29/2024400 shares $20.30 thousand +300.0%N/A0.1 $50.76
2/15/2024100 shares $5.08 thousand No ChangeN/A0 $50.77
1/31/2024100 shares $5.11 thousand No ChangeN/A0 $51.12
11/30/2023400 shares $20.29 thousand No ChangeN/A0.1 $50.72
11/15/2023400 shares $20.10 thousand -82.6%N/A0.1 $50.26
10/31/20232,300 shares $115.39 thousand -86.3%N/A1 $50.17
10/15/202316,800 shares $842.35 thousand +18.3%N/A5.8 $50.14
9/30/202314,200 shares $715.45 thousand -25.7%N/A4.7 $50.38
9/15/202319,100 shares $962.45 thousand -55.8%N/A6.4 $50.39
8/31/202343,200 shares $2.19 million -18.0%N/A14.6 $50.67
8/15/202352,700 shares $2.66 million +155.8%N/A14.2 $50.42
7/31/202320,600 shares $1.04 million -45.8%N/A4.1 $50.58
7/15/202338,000 shares $1.92 million +458.8%N/A7.6 $50.57
6/30/20236,800 shares $343.81 thousand +325.0%N/A1.3 $50.56
6/15/20231,600 shares $81.04 thousand -54.3%N/A0.3 $50.65
5/31/20233,500 shares $178.15 thousand -58.3%N/A0.6 $50.90
5/15/20238,400 shares $430.08 thousand No ChangeN/A1.8 $51.20

SDSI Short Interest - Frequently Asked Questions

Short interest is the volume of American Century Short Duration Strategic Income ETF shares that have been sold short but have not yet been covered or closed out. As of August 31st, investors have sold 17,124 shares of SDSI short. 0.36% of American Century Short Duration Strategic Income ETF's shares are currently sold short. Learn More on American Century Short Duration Strategic Income ETF'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. SDSI shares currently have a short interest ratio of 0.4. Learn More on American Century Short Duration Strategic Income ETF'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. 0.36% of American Century Short Duration Strategic Income ETF's floating shares are currently sold short.

American Century Short Duration Strategic Income ETF saw a increase in short interest in August. As of August 31st, there was short interest totaling 17,124 shares, an increase of 0.0% from the previous total of 17,116 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.

0.36% of American Century Short Duration Strategic Income ETF's shares are currently sold short. Here is how the short interest of companies compare to American Century Short Duration Strategic Income ETF: iShares MSCI UAE ETF (1.78%), SGI Enhanced Core ETF (0.07%), Optimize Strategy Index ETF (0.00%), Pacer Emerging Markets Cash Cows 100 ETF (0.99%), iShares MSCI Turkey ETF (4.93%), First Trust International Developed Capital Strength ETF (0.02%), First Trust S&P International Dividend Aristocrats ETF (0.49%), Alpha Architect U.S. Quantitative Momentum ETF (0.38%), First Trust RiverFront Dynamic Developed International ETF (0.05%), Goldman Sachs India Equity ETF (0.04%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($62.68 billion), Invesco QQQ ($47.06 billion), iShares Russell 2000 ETF ($23.54 billion), SPDR S&P Biotech ETF ($12.10 billion), Nebius Group N.V. ($9.34 billion), Western Digital Corporation ($8.96 billion), Financial Select Sector SPDR Fund ($8.16 billion), iShares 20+ Year Treasury Bond ETF ($7.98 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($7.52 billion), and VanEck Semiconductor ETF ($7.39 billion). View all of the most shorted stocks.

Short selling SDSI is an investing strategy that aims to generate trading profit from American Century Short Duration Strategic Income ETF as its price is falling. SDSI shares are trading up $0.06 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 American Century Short Duration Strategic Income ETF 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 SDSI, 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 SDSI, twice per month. The most recent reporting period available is August, 31 2026.

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

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