STAR SPORTS MED (01609) vividly demonstrated market frenzy and rationality within just 48 hours. The stock witnessed the full cycle of irrational exuberance and its collapse, from a liquidity illusion during the grey market with a surge of up to 408%, to a high-open-low-close pattern on its listing day (May 5) with a price swing exceeding 98%, and finally to a brutal return to its IPO valuation on the following day (May 6), allowing investors to observe the entire process of this "first domestic sports medicine stock."
The extreme oversubscription of 7,823 times amplified the scarcity of shares. During the grey market trading on May 4, which suffered from liquidity scarcity, STAR SPORTS MED displayed extreme valuation premiums and significant liquidity divergence. The price surged to HKD 501 at one point, representing a 408.6% premium over the issue price of HKD 98.5, and finally closed at HKD 309.2, a gain of 213.91%. Based on a board lot of 50 shares, the paper profit per board lot during the grey market exceeded HKD 10,000. The essence of this abnormal surge was a liquidity premium driven by a severely imbalanced supply-demand structure. Public data showed that the Hong Kong public offering of STAR SPORTS MED was oversubscribed by 7,823 times, with over 300,000 valid applications, while the public offering portion was only 842,200 shares, resulting in a lottery success rate as low as 1.5%. The extremely low float meant that a small number of successful applicants held short-term pricing power, and the grey market surge was an extreme amplification of share scarcity amid liquidity scarcity.
A more noteworthy signal came from the price divergence across different grey market platforms: Futu's grey market closed at HKD 342, Phillip's at HKD 310.8, while the TGM grey market for inter-institutional trading consistently remained at the issue price of HKD 98.5. This significant price gap indicated that international placing participants had already begun systematic selling during the grey market, laying the groundwork for selling pressure on the official listing day.
Behind the high-open-low-close battle between bulls and bears on the debut day, most funds were realized. On May 5, when STAR SPORTS MED officially began trading, the day's movement showed a classic pattern of high opening, low closing, and heavy turnover. The market quickly returned to rationality after extreme excitement, engaging in a fierce battle between bulls and bears. The opening price was set at HKD 288, a sharp gap-up of 192.39% from the issue price, seemingly continuing the strong sentiment from the grey market but actually concealing underlying worries. Compared to the grey market closing price of HKD 309.2, the opening price represented a discount of approximately 6.9%, and a retreat of over 42% from the grey market high, indicating that profit-taking from the grey market had already begun during the pre-open auction.
While the Hang Seng Index and the Hang Seng Tech Index fell over 1% and 2% respectively that day, under overall market pressure, STAR SPORTS MED recorded a turnover of HKD 329 million on its debut, with a first-day turnover rate as high as 5.91%, highlighting the intense battle between bulls and bears within a wide price range. After the morning session opened, the stock price quickly rose to HKD 299 within half an hour, approaching a 200% gain. This price level, exactly HKD 200 above the issue price, became an insurmountable resistance level for the day. With ample morning liquidity, chasing funds and profit-takers converged here. The surge was essentially a last-ditch effort by the bulls but also triggered the breakdown of the hold-and-see logic from the grey market, becoming a rallying point for the bears' counterattack. The price never touched this high again.
After hitting the HKD 299 high, the stock price declined in three accelerating phases: the first phase dropped from HKD 299 to HKD 260, corresponding to concentrated closing of grey market profits; the second phase fell from HKD 260 to HKD 240, as international placing shares began joining the sell-off; the third phase plunged from HKD 240 to the intraday low of HKD 222.4, triggered by concentrated stop-loss selling from those who chased the rally. More critically, STAR SPORTS MED's issuance did not include an over-allotment option (greenshoe mechanism), meaning there was no stabilizing support from underwriters. When selling pressure concentrated, the market had to rely on its own forces to absorb it, intensifying price volatility.
The afternoon session entered a phase of consolidation on low volume. After most of the trading was completed in the morning, the price continued to decline in the afternoon, but trading volume significantly contracted. By the close, the stock price was HKD 215, up 116.5% from the issue price, with the market capitalization falling to HKD 11.8 billion. Notably, the first-day trading volume was 3.2417 million shares, corresponding to a turnover rate of 5.91%, meaning nearly 6% of the listed float changed hands in a single day. This figure needs context: during the grey market, the tradable public offering shares were only 842,200 shares, with grey market trading volume under 50,000 shares. Therefore, the vast majority of selling on the debut day must have come from the international placing portion. Sales from international placing participants dominated the 3.24 million share volume. Institutional investors who obtained shares cheaply during the offering phase chose to exit opportunistically on the first day.
The second day featured a tug-of-war between panic selling and value regression. On May 6, STAR SPORTS MED's price movement showed a typical "dip and rebound" pattern. After the fierce battle the previous day, the market entered a crucial phase of share沉淀 and value re-assessment. During the pre-open auction, the stock opened at HKD 220.000 but was immediately hit by concentrated short selling, quickly falling to HKD 191.200 intraday, setting a new record low since listing. This low was approximately 11.1% below the previous day's close of HKD 215.000, reflecting renewed panic selling after the first-day rebound failed to effectively absorb selling pressure.
However, after touching the HKD 190-200 range, significant active buying emerged, pushing the price gradually higher. By the close, the stock price was HKD 217.800, up 1.30% from the previous close. The intraday rebound from the low reached 13.9%. The closing price was at the 62nd percentile of the day's price range (HKD 191.200 - HKD 220.000), indicating that bulls successfully mounted a counterattack in the low region and pulled the price back above the previous close.
From a volume perspective, the day's trading volume was 496,800 shares, with a turnover rate of 0.906%, significantly lower than the debut day's 5.91%. This change suggests that after the intense turnover on the first day, share locking improved.
Reviewing the trends across the grey market, debut, and second day, the complete operational path of major funds—"creating premium, distributing at highs, accumulating at lows"—is clearly discernible. During the grey market (May 4), major funds cleverly used the supply-demand imbalance to create a "liquidity illusion," forming a carefully designed "bull trap setup": extreme gains on retail-focused grey market platforms created a strong profit effect, attracting chasing funds for the debut day, while international placing participants had already quietly begun selling during the grey market.
On the debut day (May 5), major funds completed high-level distribution. The opening price of HKD 288 provided a decent exit for those who chased highs in the grey market. The subsequent rapid surge to HKD 299 created room for major players to attract morning chasing funds. The three-phase decline from HKD 299 to HKD 222 was precisely the concerted selling by international placing participants and grey market profit-takers. It is noteworthy that the four cornerstone investors (collectively subscribing for approximately 3.02 million shares, representing 35.9% of the global offering, subject to a 6-month lock-up) could only passively endure the evaporation of market value as the price retreated from HKD 299 to around HKD 200 during the first-day sell-off. The afternoon consolidation on low volume indicated that most of the selling pressure had been cleared on the first day, temporarily leaving the market in a bull-bear vacuum.
On the second day (May 6), the market provided key validation. The stock opened higher at HKD 220 but quickly fell, hitting a new listing low of HKD 191.2. While this seemed to indicate heightened panic, it was followed by a deep V-shaped rebound, closing at HKD 217.8, up 1.30% from the previous close, with a rebound of 13.9% from the low. This movement highly coincided with broker seat data: combined net buying of approximately 78,000 shares by foreign and major Chinese institutional seats (like HSBC, Goldman Sachs, Bank of China International) contrasted with combined net selling of about 41,000 shares by internet retail brokers (like Futu, Huasheng), showing a clear pattern of "institutional accumulation, retail flight." Futu Securities alone net sold 35,100 shares, being the largest seller, its behavior perfectly matching the characteristic of retail stop-loss selling during the deep V rebound. Simultaneously, the turnover rate plummeted from 5.91% on the debut day to 0.88%, indicating a significant reduction in the intensity of panic selling and the beginning of share沉淀.
In summary, the roller-coaster ride of STAR SPORTS MED over two trading days can be described as: starting with a "liquidity illusion" fueled by 7,823 times oversubscription in the grey market, transitioning to a brutal bull-bear battle on the debut day without a greenshoe mechanism, and culminating in institutions seizing panic-driven opportunities to "pick up shares" on the second day. Looking ahead, as the cornerstone lock-up period progresses and market sentiment further stabilizes, whether STAR SPORTS MED can deliver performance that matches its halo as the "first domestic sports medicine stock" will be the ultimate test for the outcome of this market game.