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FOMO港美股
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Roundhill Memory ETF $DRAMB fell 20.46% in October. All 11 companies declined: 0 up, 11 down, with total equity exposure of 99.90%.
The three largest holdings are memory leaders. Micron$MUB 27.15% fell 16.92%, Samsung Electronics fell 16.18%, and SK Hynix fell 20.12%. Together, they account for 75.77%, and none fell as much as the index’s 20.46%. Of the remaining 24.13%, SanDisk$SNDKB fell the most, at 33.85%, while Winbond Electronics fell the least, at 8.36%.
The biggest holdings weren’t what drove the selloff.
Seagate fell 30.11%, 1.78 times Micron’s decline, but its weight was only 4.11%, detracting 1.24 percentage points from the index. Micron fell much less, but its 27.15% weight meant it detracted 4.59 percentage points—3.7 times Seagate’s impact. Ranking holdings by their declines produces a different list from ranking them by their weighted contributions.
In September, this ETF was still up 6.08%. A month later, it was down 20.46%, a 26.54-percentage-point swing in monthly returns, and the number of advancing holdings had fallen from 7 to zero. Whether divergence emerges in November will be key to determining whether the entire supply chain is turning together or whether the problems are specific to individual companies.
#存储 #芯片 #BStocks
The three largest holdings are memory leaders. Micron$MUB 27.15% fell 16.92%, Samsung Electronics fell 16.18%, and SK Hynix fell 20.12%. Together, they account for 75.77%, and none fell as much as the index’s 20.46%. Of the remaining 24.13%, SanDisk$SNDKB fell the most, at 33.85%, while Winbond Electronics fell the least, at 8.36%.
The biggest holdings weren’t what drove the selloff.
Seagate fell 30.11%, 1.78 times Micron’s decline, but its weight was only 4.11%, detracting 1.24 percentage points from the index. Micron fell much less, but its 27.15% weight meant it detracted 4.59 percentage points—3.7 times Seagate’s impact. Ranking holdings by their declines produces a different list from ranking them by their weighted contributions.
In September, this ETF was still up 6.08%. A month later, it was down 20.46%, a 26.54-percentage-point swing in monthly returns, and the number of advancing holdings had fallen from 7 to zero. Whether divergence emerges in November will be key to determining whether the entire supply chain is turning together or whether the problems are specific to individual companies.
#存储 #芯片 #BStocks
