What if you started monthly Bitcoin DCA on Pizza Day?
Timed to 'Bitcoin Pizza Day' (May 22), when 10,000 BTC bought two pizzas, this uses real data to show what would have happened if you had invested 300,000 won a month into Bitcoin (BTC) from May 2015, where data is available. We honestly include the extreme volatility.
⚠️ Know the risk first
In this period, Bitcoin suffered -70 to -80% crashes (crypto winters) several times. Even with DCA, value repeatedly fell far below what you put in, so always review the maximum drawdown and loss periods.
What happened that day
On May 22, 2010, 10,000 bitcoin bought two pizzas — the first purchase of a physical good with Bitcoin — and every May 22 is 'Bitcoin Pizza Day.' Here it is used as a DCA start, but calculated from May 22, 2015, where data is available.
Why this date
The Pizza Day anniversary (May 22) is used as the DCA start, but because this service's daily Bitcoin data is available from late 2014, we set the actual start to the anniversary of May 22, 2015. It does not mean the event caused the performance.
Investment conditions
Asset · Bitcoin (BTC) · 300,000 won monthly from May 2015
Method · Recurring monthly investment
Period · 2015-05-22 ~ 2026-07-01
Amount · $222 / month
As of · 2026-07-01
Key metrics
These results do not reflect taxes. Based on historical data.
Risk & recovery
As important as returns. This service does not hide maximum drawdown or loss periods.
Maximum drawdown (MDD)
-82.9%
Largest drop from peak
Longest loss period
2months
Months in loss: 3
Recovery period
21months
Growth over time
Invested principal (dashed) and portfolio value (solid). Values below match the calculation.
Total invested $30,000 → Final value $882,877 (+2842.9%), Maximum drawdown (MDD) -82.9%
Why this period and asset
On May 22, 2010, Laszlo Hanyecz bought two pizzas for 10,000 bitcoin — recorded as the first purchase of a physical good with Bitcoin — and every May 22 is celebrated as 'Bitcoin Pizza Day.' Using this easy-to-remember anniversary as the start, but because this service's daily Bitcoin data is available from late 2014, we set the actual DCA start to the anniversary date of May 22, 2015. This period includes the 2017 and 2021 surges and the -70 to -80% 'crypto winter' crashes that followed each of them.
Interpreting the result
DCA spreads the same amount across each month, reducing the risk of getting fully trapped at a single peak even in an extremely volatile asset like Bitcoin. In the crash winters, the same 300,000 won buys more units. In the metrics below, look at total invested, the final value, and the return (XIRR), but always also check the maximum drawdown and loss periods that recurred in between. Even with DCA, the nature of the asset meant value repeatedly fell far below what you put in.
Caveats & limits
Bitcoin is an extremely volatile asset that moves double digits in a single day, with added regulatory, hacking, and exchange risks. Pizza Day is only an 'easy-to-remember anniversary,' not a basis for DCA performance. This page recommends no coin. Figures use USD close and exclude exchange rates, fees, and taxes; always review the maximum drawdown and loss periods. This is past data only and does not guarantee the future.
Event fact sources
- Bitcoin Wiki, 'Laszlo Hanyecz' (10,000 BTC pizza, 2010-05-22)
- TechCrunch, 'May 22 Is Bitcoin Pizza Day' (2014)
Requested date vs actual trading date
Crypto has no market holidays, so contributions start from the requested day. The 'effective trading date' below is the start 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)
- Trading fees and taxes are not reflected — figures are pre-tax.
- Based on historical data; does not guarantee future returns.
Frequently asked questions
Pizza Day is 2010 — why calculate from 2015?
Pizza Day itself is May 22, 2010, but this service's reliable daily Bitcoin data is available from late 2014. So, while keeping the intent of 'monthly DCA from the Pizza Day anniversary,' we set the actual DCA start to the anniversary of May 22, 2015, where data exists.
Does DCA make Bitcoin safe?
No. DCA only reduces the risk of dumping everything at a single peak; it does not remove Bitcoin's extreme volatility itself. Even in this period, value repeatedly fell far below what you put in. Be sure to check the maximum drawdown and loss-period metrics below.
How much is 300,000 won a month in total?
From May 2015, 300,000 won a month accumulates about 11 years of principal. The 'total invested' below is the actual sum of contributions, compared with the final value for the return (XIRR). This result assumes you kept contributing without selling in between.
Are FX and taxes reflected?
No. Figures use USD close and exclude exchange rates, trading fees, and taxes. In real investing, exchange rates, exchange fees, and taxes would additionally affect your results.
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.