Bitcoin outperforms the S&P 500, +2.6% to -0.5% – August 17, 2026

Looking back at August 17, 2026, the markets tracked by Alysly showed a mixed picture: 55 of 86 monitored assets (64 %) closed higher. The day's biggest swing came from the crypto asset POL at +6.8 %. The major equity indices moved -0.0 % on average, as digital assets averaged +3.1 %.
The key points at a glance
- Breadth: 55 of 86 assets higher (64 %) – a mixed picture.
- Biggest daily move: POL at +6.8 %.
- Indices: 4 of 16 higher – strongest MSCI Emerging Markets (+1.07 %), weakest DAX (-0.49 %).
- Asset classes: leading crypto (+3.1 %), lagging equities (-0.0 %).
- Crypto: top gainer GPS (+51.1 %), top loser HOME (-11.7 %).
- Correlation: EUR/USD ↔ Gold at +0.59 (moderately correlated).
- Real assets: top hammer price Porsche 911 Turbo (993) — 1995–1998 at $320,000 (Classic cars).
Market barometer
Breadth = share of all tracked instruments (indices, liquid crypto, commodities, forex) with a positive daily change. Bars scale with the magnitude of each asset class's average daily return.
In focus: POL
At +6.8 %, POL was the day's most notable single move. The chart shows its trajectory over the selected range:
Indices on the day
Of the 16 benchmark indices tracked, 4 closed higher – so the majority slipped. MSCI Emerging Markets led the field at +1.07 %, while DAX trailed at -0.49 %. The “52W” column shows where each index sits within its yearly range – a marker far to the right means it is trading close to its 52-week high.
Crypto: daily gainers & losers
From the 50 largest crypto assets by trading volume – illiquid micro-caps excluded.
Gainers
The crypto market's daily mean was +3.1 %. Leading the pack was GPS at +51.1 %, with HOME trailing at -11.7 %. Crypto remains the most volatile asset class covered here – daily swings of this magnitude are normal and say little about the long-term trend.
Commodities & precious metals
Precious metals averaged +1.3 %, energy and industrial commodities +1.6 %. Both groups advanced. Gold is a traditional hedge, while crude oil and copper act as growth barometers.
| Name | Price | Change |
|---|---|---|
| Gold | 4473.7 | +0.82 % |
| Silver | 66.231 | +1.72 % |
| Platinum | 1788.9 | +1.82 % |
| Palladium | 1336.9 | +0.86 % |
| WTI crude | 84.5 | +4.00 % |
| Brent crude | 90.87 | +4.36 % |
| Gasoline | 2.9776 | -4.81 % |
| Heating oil | 4.4371 | +4.39 % |
| Copper | 6.616 | +0.05 % |
Foreign exchange (Forex)
The key pair EUR/USD moved +0.05 % – the euro gained on the US dollar, so the dollar was relatively weaker. A firmer dollar tends to weigh on commodities and emerging markets, a weaker one supports them. Prices are drawn from CME FX futures.
| Pair | Price | Change |
|---|---|---|
| 1.1585 | +0.05 % | |
| 1.3538 | +0.04 % | |
| 159.2483477983916 | +0.14 % | |
| 0.7099 | +0.29 % | |
| 1.385905342665096 | +0.00 % | |
| 0.809094219021805 | -0.18 % |
Real assets: new hammer prices
Between 10 August 2026 and today, 2 auction records were captured. Real assets have no continuous quote; a price only comes into being with the hammer.
| Asset class | Records | Median | Highest hammer price | Price |
|---|---|---|---|---|
| Classic cars | 2 | $180,250 | Porsche 911 Turbo (993) — 1995–1998 11 Aug 2026 | $320,000 |
Median = the middle hammer price among this window's records, not the value of a fixed position. It moves simply because different items come up for sale each week — precisely the composition effect the price index below avoids. Prices are hammer prices including the buyer's premium.
No lot changed hands in trading cards in this window – the most recent recorded sale is 7 days back (10 August 2026). With few, high-priced items such gaps are the norm, not a data outage. No lot changed hands in watches in this window – the most recent recorded sale is 65 days back (13 June 2026). With few, high-priced items such gaps are the norm, not a data outage.
The trading-card price index stands at 538.1, +251.9 % against a year ago (base 100 at the first quarter covered, as of 10 August 2026). It measures price changes of the same good rather than the median of a changing offer. Against the previous reading (29 June 2026) that is -2.0 % – a quarterly figure, not a daily one.
Residential property: an official index, not a hammer price
For residential property there are no individual sales to report: prices there are formed in statistics, not under the hammer. The latest available reading is 1 May 2026 – 108 days before this report, which reflects the publication lag of the sources rather than missing data.
| Series | Level | Prior print | 1 year |
|---|---|---|---|
| United States (Case-Shiller) 1 May 2026 | 335.1 | +0.6 % | +1.1 % |
| Germany 31 Mar 2026 | 153.4 | +0.3 % | +1.4 % |
| Euro area 31 Mar 2026 | 157.4 | +0.9 % | +4.6 % |
Cross-asset correlations
Over the past 90 trading days, EUR/USD and Gold were moderately correlated, with a correlation coefficient of +0.59. A value near +1 means they move together, near −1 they move opposite, near 0 there is no linear link. For portfolio diversification, low or negative correlations are valuable – they smooth out volatility.
| Pair | r (90d) | −1 … +1 |
|---|---|---|
| S&P 500 ↔ Bitcoin | +0.39 | |
| S&P 500 ↔ Gold | +0.47 | |
| Gold ↔ Crude oil (WTI) | -0.36 | |
| EUR/USD ↔ Gold | +0.59 |
Summary
On balance, August 17, 2026 was a day of a mixed picture across the markets Alysly tracks: 55 of 86 assets closed higher. The headline came from POL at +6.8 %. Across asset classes, crypto led (+3.1 %) while equities lagged (-0.0 %). The correlation between EUR/USD and Gold was moderately correlated (+0.59) – a gauge of how much diversification benefit combining the two currently offers. Away from the capital markets, the top hammer price was Porsche 911 Turbo (993) — 1995–1998 at $320,000 – a price struck at a single table rather than on an exchange. For long-term investors, though, single trading days are noise: what matters is broad diversification across asset classes, regions and time – not any one day's move.
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