BlackRock Bitcoin ETF Outperforms Vanguard S&P 500 Fund Since Listing

Bitcoin (BTC) Editor: Eugene Serbin

coincu.com reports that BlackRock's iShares Bitcoin Trust (IBIT) has outperformed Vanguard's flagship S&P 500 fund since the Bitcoin ETF began trading. This comparison was circulated by Bloomberg senior ETF analyst Eric Balchunas. The claim reframes the year-old spot Bitcoin product as a return leader against the most widely held U. Read more...

How the market reacted

Whalio's own Binance spot order flow for BTC, measured when this story was written up on 1 September 2026. Not the outlet's figures.

Price
$78,581.29
Buy Ratio (1h)
42.6%
Buy Ratio (4h)
48.5%
Buy Ratio (24h)
53.3%
Volume Delta (1h)
-$5,584,661
Volume Delta (4h)
-$7,097,183
Volume Delta (24h)
+$78,331,520
CVD (24h close)
+$59,838,497
Hours of net buying
15 of 24
Spot Volume (24h)
$1,198,158,182
Trades (24h)
4,354,737

BTC is trading at $78,581.29 with a 24-hour buy ratio of 53.3%, indicating that buyers are currently in control of the market. However, shorter-term pressure shows a dip, with the 1-hour buy ratio at 42.6% and the 4-hour ratio at 48.5%, suggesting buying momentum is fading in the immediate term. Volume delta reflects this shift, showing negative net flow of -$5,584,661 over the last hour and -$7,097,183 over four hours, compared to a positive +$78,331,520 over the full day. This means that while net buying accumulated significantly over 24 hours, recent hours have seen more selling than buying. The Cumulative Volume Delta (CVD) for the 24-hour close stands at +$59,838,497, confirming that net buying outweighed selling over the longer timeframe despite the recent reversal.

The latest daily buy ratio of 46.7% sits at the 18th percentile of the last 322 days, against a median of 49.2% - weaker buying than most days.

Twenty-four hours later

What BTC did over the 22 hours after the story broke. The market moves for its own reasons; this is what happened, not what the story caused.

Price
+0.15%
Buy ratio
49.8%
Volume delta
-$3,560,664
Hours of net buying
13 of 22

Was that an ordinary day?

The same Binance spot measurements for BTC, averaged over the days leading up to the story.

Buy Ratio (7d average)
48.8%
Latest day vs average
+4.4 pts
Volume vs average
0.87x
Days of net buying
2 of 7
Price change (8d)
-0.5%
Volume Delta (8d total)
-$125,691,820

Over the preceding week, the 7-day average buy ratio was 48.8%, making today's 24-hour ratio of 53.3% an unusual day with a +4.4 point increase above the average. Volume was lighter than usual, trading at 0.87x the average, while the price changed by only -0.5% over eight days. Net volume delta for the week totaled -$125,691,820, contrasting with the positive 24-hour delta, indicating that recent buying was not enough to offset earlier weekly outflows. Only 2 of the 7 days saw net buying, highlighting that this recent uptick is a deviation from a generally weak weekly trend.

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