What if you bought BNB at its 2021 mania peak?
This uses real data to show what would have happened if you had invested a lump sum in BNB on May 10, 2021 — its all-time high of about $691 amid the 2021 crypto mania. We honestly examine the plunge after buying an exchange coin at a record high.
⚠️ Know the risk first
BNB fell sharply in a market plunge that began just days after the record high. As an exchange coin, regulatory and legal risk is also high. Always review the maximum drawdown and loss periods.
⚠️ This asset is an individual stock chosen as of today, so past returns can look better than they really were (survivorship bias).
What happened that day
On May 10, 2021, the Binance exchange coin BNB hit its all-time high of about $691. It was the peak of the first-half 2021 crypto mania, but it fell sharply days later in mid-May amid a broad crypto-market plunge.
Why this date
The buy date is the all-time-high day at the peak of the first-half 2021 crypto mania, computing the worst-timing question 'what if you bought at the top of the frenzy.'
Investment conditions
Asset · BNB · lump-sum on its 2021 all-time-high day, then held long-term
Method · Lump-sum (all at once)
Period · 2021-05-10 ~ 2026-07-01
Amount · $7,407
As of · 2026-07-01
Key metrics
These results do not reflect taxes. Based on historical data.
Buy and final prices are shown in the asset's local currency (US & crypto $, Japan ¥, Korea ₩). Total invested and final value are in Korean won (₩).
Risk & recovery
As important as returns. This service does not hide maximum drawdown or loss periods.
Maximum drawdown (MDD)
-70.7%
Largest drop from peak
Longest loss period
42months
Months in loss: 50
Recovery period
15months
Growth over time
Invested principal (dashed) and portfolio value (solid). Values below match the calculation.
Total invested $7,407 → Final value $6,461 (-12.8%), Maximum drawdown (MDD) -70.7%
Why this period and asset
May 10, 2021 was the day BNB, the Binance exchange coin, hit its all-time high of about $691. It peaked amid the first-half 2021 crypto mania, but just days later, in mid-May, a broad crypto-market plunge (China regulation, Musk comments, and more) hit BNB hard too. Buying on this date means buying at the exact top of the first-half mania.
Interpreting the result
If you bought on the all-time-high day itself and never sold, check the final value and maximum drawdown in the metrics below. The key is the path taken to recover the price paid at the record high. Consider whether you could have endured the plunge that began just days after entry. Crypto carries volatility incomparably larger than an index or large-cap stock, and investing gradually each month instead of all at once would have reduced the risk of concentrating your buy at the top.
Caveats & limits
Buying a coin at a record high is an extreme peak-buying situation. Don't look only at the final return — always review the plunge right after entry and the maximum drawdown and loss periods. BNB is tightly tied to a specific exchange (Binance), so exchange and regulatory risk is especially high. Picking only coins that survived and recovered creates an illusion. The source data is in USD and excludes exchange rates, fees, and taxes. Past results do not guarantee the future.
Event fact sources
- MoonPay — Binance Coin (BNB) all-time high $690.93, 2021-05-10
- Coinbase — BNB price history (2021 peak)
Requested date vs actual trading date
Crypto trades 24 hours, so the holiday concept is weak, but on data gaps the next valid day's close is used. The 'effective trading date' below is the date actually used.
Data sources & limits
- Price data source: Yahoo Finance / FinanceDataReader
- Collected on: 2026-07-28
- Effective trading date: 2026-07-01
- Price basis: Adjusted close (reflects dividends and stock splits)
- This asset is an individual stock chosen as of today, so past returns can look better than they really were (survivorship bias).
- Trading fees and taxes are not reflected — figures are pre-tax.
- Based on historical data; does not guarantee future returns.
Frequently asked questions
Was that really BNB's all-time high?
Yes. BNB recorded its all-time high of about $691 (around $690.93) on May 10, 2021. It was around the peak of the first-half 2021 crypto mania.
Did you lose money right after buying?
Yes. Days after the record high, in mid-May, a broad crypto-market plunge on regulatory concerns hit BNB hard. See that stretch in the maximum drawdown metric below.
Why is BNB said to carry especially high risk?
BNB is tightly bound to the Binance exchange ecosystem, so the exchange's own regulatory and legal risks can directly affect the coin's price. Individual coins, especially exchange coins, carry high risk.
Are FX and taxes reflected?
No. The source data is in USD and excludes exchange rates, fees, and taxes. This page only shows historical data and recommends no specific asset.
Related scenarios
📋 Results are based on historical data; past returns do not guarantee future returns.
📋 This service is provided for educational purposes to help you understand investing, not as investment advice.
⚠️ Calculated using today's representative assets, which may differ from the market composition at the time.