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Chicago Board Options Exchange
Previous close
$8.60
+$0.5226 · +6.47%
Sep 15, 3:55 PM ET
After-hours
$8.50
−$0.10 · -1.16%
Sep 15, 7:10 PM ET
Regular session · ET · Market data may be delayed.
RMBX uses swap agreements and listed call options to make bullish bets on the share price of Rambus Inc. (NASDAQ: RMBS). The fund may also invest directly in RMBS. The company designs and licenses high-speed semiconductor memory architectures, interface chips, and hardware security IP to optimize data transfer speeds and security for data center, artificial intelligence, and cloud computing workloads. The fund seeks to maintain daily leveraged exposure equivalent to 200% of the daily percentage change in RMBS price through daily rebalancing. Returns may deviate from the expected 200% if held for longer than a single day due to factors such as volatility and compounding. The fund expects to invest in US Government securities, money market funds, short-term bond ETFs, and corporate debt as collateral.
Fund assets
484.23K USD
Expense ratio
1.49%
NAV
$8.07
Average volume
5.45K
Volume
4.93K
Day range
$8.26 – $8.60
52-week range
$8.00 – $23.61
Previous close
$8.0774
Price change
1 day
+6.47%
1 month
-34.15%
3 months
-61.07%
Year to date
-61.07%
1 year
-61.07%
3 years
-61.07%
5 years
-61.07%
Price changes exclude distributions, fees, taxes, and investor-specific cash flows.
Portfolio
Holdings data updated Sep 16, 2026.
Latest coverage
No ETF news is currently available.
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ETF data may be delayed, incomplete, or revised. Holdings and exposures change over time. Historical performance does not guarantee future results. This page is for informational and educational purposes only and does not constitute investment advice or a recommendation.