What if you bought HYBE (Big Hit) on its IPO day?
This uses real data to show what would have happened if you had invested a lump sum in Big Hit (now HYBE, 352820), BTS's label, on October 15, 2020 — its IPO day. We honestly examine a first-day buy that surged then slumped amid 'ddasang' hype.
⚠️ Know the risk first
It opened at double the offer price but fell right after a day-one intraday high; buyers near the open or high suffered larger losses. Always review the maximum drawdown metric below.
⚠️ 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 October 15, 2020, Big Hit Entertainment (now HYBE), BTS's label, listed on the KOSPI. It opened at 270,000 won — double its 135,000-won offer price — amid 'ddasang' hopes, but after a day-one intraday high it closed lower.
Why this date
HYBE's daily price data begins on its IPO day, so the 'jumped in on day one of a hyped IPO amid BTS fever' assumption can be computed precisely from that day's close.
Investment conditions
Asset · HYBE (formerly Big Hit) (352820) · lump-sum on IPO day, then held long-term
Method · Lump-sum (all at once)
Period · 2020-10-15 ~ 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)
-73.6%
Largest drop from peak
Longest loss period
19months
Months in loss: 44
Recovery period
39months
Growth over time
Invested principal (dashed) and portfolio value (solid). Values below match the calculation.
Total invested $7,407 → Final value $5,959 (-19.6%), Maximum drawdown (MDD) -73.6%
Why this period and asset
October 15, 2020 is the day Big Hit Entertainment (now HYBE), BTS's label, listed on the KOSPI, matching the start of this service's data. The stock opened at 270,000 won — double its 135,000-won offer price — fueling 'ddasang' (double-open then daily limit-up) hopes, but after an intraday high on day one it closed lower. For retail investors who bought near the open or the intraday high, it was not a glamorous debut but an immediate test of enduring losses.
Interpreting the result
This case shows the risk of 'jumping in excitedly on day one of a hyped IPO.' If you bought at the first-day close and never sold, you get the metrics below; but had you bought near the day-one open or intraday high, your much higher entry price would have made the result worse. Confirm alongside the maximum drawdown and loss periods that day-one excitement is not the same as good timing.
Caveats & limits
This calculation uses the first-day 'close.' Many retail investors actually bought at the surged open or intraday high, where losses were larger. As a single stock, be mindful of survivorship bias. Figures use adjusted close, are in KRW, and exclude fees and taxes; the data window is short and limited as long-term statistics. Always review the maximum drawdown and loss periods.
Event fact sources
- Soompi — Big Hit Entertainment Shares Debut At Double Their IPO Price (2020-10-15)
- Gulf News, Big Hit debuts at double IPO price (2020-10-15)
Requested date vs actual trading date
If the event date is a holiday, the fill uses the next trading day's close. The 'effective trading date' below is the date actually used. This calculation uses the first-day close.
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
'Ddasang' hype was high — did it end badly?
Yes. It opened at 270,000 won, double the offer price, but after a day-one intraday high it closed lower. Investors who bought near the open or high soon faced large losses. It is a classic lesson about buying on day one of a hyped IPO.
Why use October 15, 2020 as the buy date?
HYBE's daily price data begins on its IPO day, October 15, 2020. That lets us compute the 'jumped in on day one of a hyped IPO amid BTS fever' assumption from that day.
Which day-one price does this use?
The first-day close. The surged open and intraday high that many retail investors actually paid were higher, where the result was worse. See the day-one-onward decline in the maximum drawdown metric below.
Are FX and taxes reflected?
As a domestic stock, figures are in KRW and FX is not applicable. Trading fees and taxes are not reflected — figures are pre-tax. This page only shows historical data and recommends no specific stock.
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.