Last week saw a generally cautious market environment amid the ongoing geopolitical tensions between Israel and Iran, pushing Wall Street’s main indices to new week-on-week losses.
The S&P 500 led the drop with 1.03 percent, followed by the Dow Jones with 0.76 percent, and the Nasdaq, down 0.71 percent.
Ten companies also mirrored a broader market pessimism, booking hefty losses, primarily due to macroeconomic developments that dented investing appetite.
In this list, let us explore last week’s 10 worst-performing stocks alongside the reasons behind their drop.
To come up with the list, we considered only stocks with at least $2 billion in market capitalization and over 5 million in trading volume. The list was based on their closing prices on June 13 and 20, 2025.
10. AppLovin Corp. (NASDAQ:APP)
AppLovin dropped its share prices by 10.9 percent week-on-week, ending last Friday at $324.7 versus the $364.49 close on June 13, as investor sentiment was largely dented by Culper Research’s report that it was short on its stock over fears of national security risks due to misrepresentations on its Chinese operations.
In a market report last week, Culper Research claimed that AppLovin Corp. (NASDAQ:APP) “blatantly misrepresented the scope of both its Chinese shareholders and its Chinese operations, posing not only risks to shareholders, but national security.”
According to the investment firm, it believed AppLovin Corp. (NASDAQ:APP) was backed by Chinese national Hao Tang through a variety of offshore shell companies, owning as much as 9.8 percent of Class A shares.
AppLovin Corp. (NASDAQ:APP) repeatedly denied claims of Chinese ownership and ties to China.
Further adding to the sour sentiment was its non-inclusion in the recent S&P 500 index rebalancing, after two other investment firms expressed confidence earlier that it would join the index for meeting the criteria of $20.5 billion in market value and GAAP profitability over the past four quarters.
Getting included in the S&P 500 can be advantageous to stock components as it exposes them to a wider group of investors.
9. Bitdeer Technologies Group (NASDAQ:BTDR)
Bitdeer Technologies slashed its share prices by 11 percent in just a week’s trading, from $12.68 on June 13 to $11.28 last Friday, tracking the week-on-week drop in Bitcoin prices.
On Friday, prices of Bitcoin declined by 2.62 percent to $103,309.6 from $106,090.97 on June 13, as trading sentiment was largely dampened by the ongoing geopolitical tensions between Israel and Iran.
Additionally, investors appeared to have soured on Bitdeer Technologies Group’s (NASDAQ:BTDR) plans to raise $330 million through a debt issuance.
In a statement last week, Bitdeer Technologies Group (NASDAQ:BTDR) said that it plans to issue convertible senior notes to qualified institutional investors until Monday, June 23.
The notes carry a yield rate of 4.875 percent to be paid semiannually on January 1 and July 1 until 2031, unless earlier converted, redeemed, or repurchased.
According to Bitdeer Technologies Group (NASDAQ:BTDR), proceeds from the offer will be used for the payment of its zero-strike call option with an investor’s affiliate, concurrent note exchange transactions, as well as data center expansion, ASIC-based mining rig development, and other general corporate purposes.
