BRKC paid out nearly $1.00 per share in a single week September 2025. By early 2026, that same weekly check had shrunk to a range of $0.10 to $0.21. The pitch is simple: own an ETF linked to a stock you already trust, collect a high yield every week, and let the options premium do the work. YieldMax BRK.B Option Income Strategy ETF (NYSEARCA:BRKC) and YieldMax MSFT Option Income Strategy ETF (NYSEARCA:MSFO) are two of the most recognizable funds in this category. The yield on the label comes with a structural cost the weekly distribution statement never shows.
How These Funds Actually Work
Neither BRKC nor MSFO holds the underlying stock directly. Both use synthetic covered call strategies, gaining exposure through options while simultaneously selling call options to generate premium income. That premium is what gets distributed to shareholders weekly.
The tradeoff is built into the structure: the short call position caps how much the fund can gain when the underlying stock rises. When Berkshire or Microsoft rallies past the strike price, the fund stops participating in those gains. The stock goes up; the fund’s NAV stays behind. Over time, in a market that trends upward, that gap compounds.
The NAV Erosion Problem Is Already Showing
MSFO illustrates this dynamic clearly. The fund is down 18% year-to-date through March 20, 2026, falling from $14.54 to $11.97. Over the same period, Microsoft shares are down 21%, from $482.52 to $381.87, so in this particular stretch, MSFO has actually held up slightly better than the underlying. But that framing misses the longer story.
The distribution data tells it plainly. MSFO’s weekly distributions peaked at $0.5498 per share in May 2025 and ranged between $0.4051 and $0.7614 throughout 2024. By early 2026, those weekly payouts had compressed to a range of $0.0532 to $0.0818. The income that attracted investors to this fund has shrunk dramatically, while the NAV has declined alongside it.
BRKC shows a similar pattern, though it launched more recently. The fund’s largest single distribution was $0.9975 on September 4, 2025, followed by $0.5347 on October 2, 2025. By early 2026, weekly payouts had settled into a $0.10 to $0.21 range. BRKC’s price has declined 4% year-to-date through March 20, 2026.
Why the Distributions Are Shrinking
Options premium is priced off implied volatility. When markets are fearful and volatile, premiums are fat and distributions are large. When markets calm down, premiums compress and income dry up. The VIX hit a low of 13.5 on December 24, 2025, deep in complacency territory, which maps almost exactly to the period when MSFO’s distributions collapsed. The VIX has since recovered to 24.1 as of March 19, 2026, above its 12-month average of 19.1, which has helped premiums partially recover. Tariff uncertainty and Federal Reserve policy ambiguity have been the primary drivers of that volatility spike, and both remain unresolved as of late March 2026.
Berkshire compounds this dynamic. BRK.B is a low-volatility conglomerate, meaning the options written on it generate thinner premiums than a high-beta tech stock. BRKC’s advertised yield will structurally lag MSFO’s simply because of the underlying’s calmer price behavior.
Three Numbers That Tell You When These Funds Are Working Against You
- The VIX level: Track the CBOE Volatility Index at FRED (fred.stlouisfed.org) or any major financial data site. Readings below 15 represent the low-premium environment where YieldMax distributions compress sharply. If the VIX trends back toward its December 2025 lows, expect distribution cuts to follow within weeks.
- Weekly distribution amounts: Both funds publish distributions weekly. Compare each new payout against the prior four weeks. A consistent downward trend in per-share amounts, rather than normal week-to-week variation, signals that premium income is deteriorating. YieldMax publishes this data on its fund pages.
- NAV versus underlying stock price: Check the fund’s NAV against BRK.B or MSFT monthly. If the underlying stock is rising while the fund’s NAV is flat or falling, the capped-upside mechanism is actively eroding your position relative to simply owning the stock.
How NAV Erosion Quietly Offsets the Income These Funds Generate
The income from BRKC and MSFO is real, but it is not free. It is generated by surrendering upside participation in stocks that have historically compounded wealth over decades. Microsoft has returned 702% over the past ten years. A covered call strategy capping gains in exchange for weekly income would have missed a substantial portion of that appreciation.
Investors who hold these funds for the yield without accounting for NAV erosion may find that total return (distributions plus price change) underperforms simply owning the underlying stock over multi-year periods. The weekly check is visible. The slow erosion of principal is not. That asymmetry is the hidden cost the headline yield never advertises.
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