DRAM ETF Sinks Nearly 32% as Margin Calls Hit Memory Stock Investors: Charlie Bilello Warns 'That Almost

The Roundhill Memory ETF (BATS:DRAM) has plunged nearly 32% in July as a wave of margin calls strikes over-leveraged memory stock investors.

Wealth manager Charlie Bilello warns that the speculative frenzy leading up to this crash is a familiar story, cautioning that "that almost never ends well for investors." The Leverage Trap The DRAM ETF, heavily weighted toward South Korean semiconductor giants Samsung Electronics and SK Hynix Inc.

(NASDAQ:SKHY), has suffered severe volatility.

In July, the ETF sank 31.79% following record-breaking inflows.

Characterizing the late-June peak as a "really speculative mania," Bilello noted there was "money flooding into these ETFs like I've really never seen before," pointing out that the DRAM ETF rapidly raised nearly $30 billion.