Weekly Analysis: Nikkei 225 Weighs on the Week (-3.9%) · August 17–21, 2026

Weekly Analysis: Nikkei 225 Weighs on the Week (-3.9%) · August 17–21, 2026

Photo: Andrea De Santis / Pexels

The trading week of August 17–21, 2026 in review: 72 of 94 tracked assets (77%) finished the week higher, with the major equity indices moving -1.1% on average over the week. The analysis covers equities and benchmark indices first, then crypto, commodities, FX and collectibles.

What Stands Out

Measured against our own history, nothing stood out this week: no benchmark index moved as much as it had in the past six months, and the count of new 52-week highs and lows stayed within the range of recent weeks.

Rule: a benchmark index is listed when its weekly change (Friday to Friday) is its largest in that direction for at least 26 weeks. The count of new 52-week highs or lows appears when it is the highest of the last 13 weeks and at least 5. Based on closing prices in our own database.

Weekly Barometer

Weekly breadth72 / 94 up
Equity indices -1.1%
Crypto +23.4%
Precious metals +5.5%
Commodities +5.8%

Weekly change = weekend close versus roughly five trading days earlier.

Indices Over the Week

Stocks: Weekly Gainers & Losers

Gainers

Stock weekly gainers
NamePriceChange
Moderna Inc. MRNA$145.13+129.20%
Strategy Inc. Class A MSTR$119.25+28.17%
DRDGOLD Ltd. DRD$30.70+26.91%
Coinbase Global Inc. Class A COIN$186.49+25.61%
Circle Internet Group Inc. Class A CRCL$87.98+22.88%
MARA Holdings Inc. MARA$11.26+22.39%
argenx SE ARGX$1,039.78+22.14%
Hims & Hers Health Inc. Class A HIMS$33.78+20.00%

Losers

Stock weekly losers
NamePriceChange
Cable One, Inc. CABO$22.82-33.82%
Advance Auto Parts Inc. AAP$42.58-24.70%
Banzai International, Inc. PARA$1.30-23.53%
Fabrinet FN$436.67-23.42%
Iqiyi ADS Representing Class A in IQ$1.06-21.85%
Nebius Group N.V. Class A NBIS$219.13-21.09%
Wolfspeed Inc WOLF$25.76-18.97%
F&G Annuities & Life, Inc. FG$22.57-17.69%

From the US stocks Alysly charts. Weekly swings in single names can be far larger than those of the indices.

Crypto, Commodities and FX

Crypto moved +23.4% on average for the week, led by ENA (+72.5%). Precious metals came in at +5.5%, energy and industrial commodities at +5.8%.

Crypto: Weekly Gainers & Losers

Gainers

Crypto weekly gainers
NamePriceChange
ENA ENA$0.1421+72.45%
HEMI HEMI$0.0102+62.30%
PEPE PEPE$0.00000412+60.31%
PUMP PUMP$0.00406+52.23%
ZEC ZEC$734.27+50.96%
XRP XRP$1.45+46.38%

Losers

Crypto weekly losers
NamePriceChange
MANTRA MANTRA$0.00479-0.83%
U U$0.9996-0.08%
RLUSD RLUSD$1.00-0.06%
USD1 USD1$0.9999-0.02%
TRON TRX$0.3434+3.68%
PAXG PAXG$4,600.00+5.29%

Commodities & Metals Over the Week

Commodities & metals over the week
NamePriceChange
Gold4,680.60+5.48%
Silver70.3405+6.79%
Platinum1,910.52+7.90%
Palladium1,384.44+1.86%
WTI crude83.0620+8.12%
Brent crude87.1237+8.60%
Gasoline2.8469+6.29%
Heating oil4.1920+6.20%
Copper6.7877-0.39%

FX Over the Week

FX over the week
PairPriceChange
EUR/USD1.1734+0.98%
GBP/USD1.3653+0.87%
USD/JPY157.62-0.17%
AUD/USD0.7165+1.37%
USD/CAD1.3690-0.80%
USD/CHF0.7908-1.43%

Real Assets: The Week's Hammer Prices

This week brought 367 auction records. Real assets are not quoted continuously. Trading happens when a lot is called. What follows is therefore not a weekly return but the sum of what actually changed hands.

The week's hammer prices per asset class
Asset classRecordsMedianHighest hammer pricePrice
Trading cards347$5,160Entei #6 · Neo Revelation 1st Edition (2001) Sep 28, 2026$312,000
Classic cars17$88,430Porsche 911 Turbo (964) · 1991–1994 Sep 15, 2026$480,964
Watches3$24,423Rolex GMT-Master 1675 · 1959–1980 Sep 17, 2026$26,051

The trading-card price index stands at 621.0 (as of September 28, 2026), +243.1% against a year ago. It measures price changes of the same good, unlike a median, which is made up of different items every week.

Residential property has no weekly figure: the latest official reading is from July 1, 2026, 51 days before this review. United States (Case-Shiller) +2.3% year on year. Germany +0.6% year on year. Euro area +3.8% year on year.

Data note 1

Cross-Asset Correlations

Cross-asset correlations
Pairr−1 … +1
S&P 500 ↔ Bitcoin+0.33
S&P 500 ↔ Gold+0.45
Gold ↔ Crude oil (WTI)-0.31
EUR/USD ↔ Gold+0.56

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