HNX30 là gì? Danh sách và cách lựa chọn cổ phiếu HNX30?

What is HNX30? The formula for calculating the HNX30 index? Criteria and methods of stock selection HNX30? Meaning of index? Compare HNX30 and VN30?

The stock market always opens up opportunities for those willing to invest and learn. Therefore, to be able to reach financial freedom, investing in the stock market is now the choice of many people. What is HNX30? Let’s find out in the article below!

1. What is HNX30?

The HNX30 index was put into operation by the Hanoi Stock Exchange (HNX) in 2012. HNX30 was born with the goal of adding investment tools on the listed stock market, creating a premise for the development of products. transactions on the index.

HNX30 includes 30 stocks with the best liquidity and market capitalization on the listed stock market of the Hanoi Stock Exchange, calculated by the capitalization value method with the ratio of stock volume adjusted by transfer (free float).

According to the Hanoi Stock Exchange (HNX), a basket of bond indexes and a market approach in addition to synthetic indices. The HNX30 index basket is a tool to help investors choose stocks easily.

Shares of companies listed on HNX30 will greatly enhance the prestige and image of the business. This is also the goal of companies listed on the Hanoi Stock Exchange (HNX).

The HNX30 index, when put into operation, was well received by the market. As of July 9, 2017, the HNX30 index has reached 190.42 points, an increase of more than 26% compared to the opening time of the HNX 30 index in July 2012 (140.33 points) and an increase of 46 points. % compared to HNX-Index (102.6 points).

The volatility trend of the HNX-listed stock market is accurately reflected in the movements of the HNX30 index. The movement of this index also closely followed the movement of HNX Index. On March 24, 2014, the highest level for HNX30 index reached 191.97 points. On November 6, 2012, the lowest index reached 91.12.

Within 5 years, nearly 36 billion shares of HNX30 group were transferred with a total transaction value of more than 403 trillion dong. Compared with the proportion of transactions on the trading market, this group of stocks always accounts for 55% – 65%.

Foreign investors are also very interested in trading stocks in the HNX30 index basket. In the past 5 years, foreign investors have transferred more than 2.4 billion shares of HNX30, corresponding to a trading value of nearly 37 trillion dong, 8% – 10% is the proportion of transactions in HNX30 that foreign investors always accounting for.

The reference index for products using or connected to the HNX30 index is the HNX30 total income index. This index helps investors evaluate the effectiveness of investing in these products. And compare the profit margin of stocks in the HNX30 basket with other baskets.

The HNX30 index is characterized by high liquidity. Therefore, it was selected by SSI Fund Management Co., Ltd. as an investment simulation index of an ETF (a type of passive investment fund that simulates a specific index.

From the end of 2014 until now, ETF certificates SSIAM-HNX30 were officially traded on HNX. An ETF portfolio consists of a basket of securities with the same structure as the index it simulates.)

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The HNX30 index was accepted as one of two indices on the Vietnamese stock market selected as the underlying asset for the digital futures contract, approved by the State Securities Commission in May 2017.

For derivatives market, HNX has HNX30 index futures contract product.

2. The formula for calculating the HNX30 index:

Formula to calculate index:



CMV: Market capitalization present

BMV: Base market capitalization


STT CK Code Company’s name Day in the basket Free-float ratio (%) first BVS Bao Viet Securities Joint Stock Company 02/07/2012 45 2 CEO CEO Group Joint Stock Company 04/05/2015 60 3 DDG Indochina Import-Export Industry Investment Joint Stock Company 11/01/2019 90 4 DTD Thanh Dat Development Investment Joint Stock Company 02/05/2019 60 5 DXP Doan Xa Port Joint Stock Company November 1, 2021 55 6 HUT Tasco . JSC 02/07/2012 95 7 IDC IDICO Corporation – JSC October 6, 2021 75 8 IDV Vinh Phuc Infrastructure Development Joint Stock Company November 1, 2021 60 9 L14 Licogi Joint Stock Company 14 02/05/2018 70 ten LASI Lam Thao Superphosphate and Chemical Joint Stock Company December 29, 2020 35 11 LHC Lam Dong Irrigation Investment and Construction Joint Stock Company 04/05/2020 70 twelfth MBS MB Securities Joint Stock Company November 1, 2017 20 13 NBC Nui Beo Coal Joint Stock Company – Vinacomin 20/07/2020 35 14 NDN Da Nang Housing Development Investment Joint Stock Company 11/02/2015 95 15 NRC Danh Khoi Group Joint Stock Company 20/05/2019 20 16 NTP Teenage Plastic Joint Stock Company – Tien Phong 11/2/2020 30 17 NVB National Commercial Joint Stock Bank 11/2/2020 100 18 PVB Vietnam Oil and Gas Pipe Coating Joint Stock Company 02/05/2019 50 19 PVC PetroVietnam Chemicals and Services Corporation – JSC (PVChem) 02/05/2019 60 20 PVS PetroVietnam Technical Services Corporation 02/07/2012 50 21 SHN Hanoi General Investment Joint Stock Company November 1, 2021 90 22 SHS Saigon – Hanoi Securities Joint Stock Company 02/07/2012 95 23 SLS Son La Sugar Joint Stock Company 02/05/2019 60 24 TAR JSC High-tech agriculture Trung An November 1, 2021 75 25 THINKING Thai Holdings Joint Stock Company 04/05/2021 75 26 TNG TNG Investment and Trading Joint Stock Company 02/05/2019 65 27 TVC Tri Viet Asset Management Group Joint Stock Company May 28, 2019 65 28 VC3 South Mekong Group Joint Stock Company 04/05/2016 50 29 VCS VICOSTONE JSC September 23, 2016 20 30 VMC May 25, 2018 May 25, 2018 50

3. Criteria and method of stock selection HNX30:

3.1. Screening Criteria:

Shares have been suspended from trading for 3 months up to the time of review and are placed under control.

The free transmission rate f is less than or equal to 5%.

Shares listed and traded on HNX for less than 6 months. There are special cases that are approved by the Index Council.

3.2. The method of choosing to enter the HNX30 index basket:

To choose to enter the HNX30 index basket, there are 5 steps:

Step 1: Investors need to calculate the average session value in the last 12 months from the base date or earlier of the codes that satisfy the above conditions. Next is to select the 100 codes with the largest average trading value per session.

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Step 2: Among those 100 stocks (Top100), 70 stocks with market capitalization after adjustment have the largest average free-transfer volume over the past 12 months (Top70).

Step 3: Check liquidity standards in the Top 70:

– Calculate the average daily volume in the past 12 months in the following way: calculate the total volume of each session of each month, arrange in order from high to low, choose the middle volume as the median volume (in case there are 2 days in the middle) then the average volume of these 2 days will be taken as the average volume);

– Calculate the ratio of the average volume of each month to the turnover of the last day of the month (r).

– All stocks with 6 out of 12 months with rate r < 0.02% will be disqualified.

Step 4: Trading value codes that meet liquidity requirements continue to be considered for exclusion of special securities at the request of the Index Council (if any).

Step 5: Select the 30 stocks with the largest free-to-transfer volume (FFMC). Securities in each industry need to ensure that it does not exceed 20% of the number of securities in the basket, the remaining securities will be on the waiting list.

4. Meaning of the indicator:

When analyzing this index, investors will understand the market situation and stock price movements. Together with HNX Index, HNX30 index shows the health of the economy. If the market is generally negative, then both indices are down for the most part. If the economic situation is positive, both indicators will have growth.

5. Compare HNX30 and VN30:

Compared to VN30, the appearance of HNX30 did not attract investors’ attention. Investors’ lack of interest in HNX30 partly shows that this index basket is just a “shadow” of VN30 in both form and quality.

As planned, from today, the Hanoi Stock Exchange (HNX) will officially operate the HNX30 index. This is a new index, supplementing the existing investment system and indicator, and is a premise for the development of trading products on the index.

HNX30 is a price index of 30 stocks selected based on liquidity and taking January 3, 2012 as the base date with a base point of 100. According to HNX, HNX30 applies the method of calculating market capitalization. field, with free floating scale adjustment.

Shares restricted from transfer in accordance with the law and voluntary commitment. The ownership portion of the State as a major shareholder, related to the brand name and the part owned by internal shareholders and related persons is not considered freely transferable and is not included in the share volume.

The HNX30 uses a 15% weighting technique to determine the maximum capitalization rate (the largest percentage at which the market value of a stock is calculated from the total market value of the index). in line with the market, in line with international standards. This application is intended to reduce the influence of high-weight stocks on the index.

The tickers are selected based on the criteria of liquidity, market capitalization and industry concentration (the number of securities in each industry group does not exceed 20% of the securities in the basket). Similar to VN30, the HNX30 index basket is reviewed every 6 months.

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25/30 components with the largest market value adjusted for freely transfer are preferred to remain in the basket. The remaining 5 stocks can be replaced based on the maintenance criteria in the Code of Principles for Building and Managing the HNX 30 Index.

The problem that investors are really wondering at the moment is the purpose of HNX30 and whether this index can overcome the distortion of HNX-Index or is it just a “shadow” of VN30? Compared with VN30, the difference of HNX30 is the issue of information disclosure.

Daily, HNX will announce real-time index movements, percentage of shares that are freely transferable of component stocks, capitalization rate of each component stock, and value of the participating market. index calculation with an adjusted free-to-transfer ratio.

Periodic adjustment changes (change in index structure, freely transferable exchange rate, circulating volume participating in index calculation) will be announced at least 7 working days before the effective date.

When a special event occurs affecting the volume of stocks for indexing, HNX will adjust the index calculation data and notify at least 1 working day before the effective date.

According to analysts, HNX30 is not much different from VN30, which also serves index funds. Meanwhile, overcoming the distortion of HNX-Index is not clear. Because HNX30 is rarely distorted like VN-Index. However, the announcement of this index did not create a sudden change for the market and pulled investors back to the market as expected by the authorities.

Currently, the Vietnamese market does not have many open-ended investment funds and the quality of HNX30 is definitely not as good as VN30. It can be demonstrated through typical codes of HNX. If HNX30 has bank codes ACB and SHB, VN30 has 5 codes: VCB, STB, CTG, MBB, EIB.

The quality of HNX30 is also reflected in the profit parameters of these stocks. According to statistics, the total profit after tax in the first quarter of 2012 of 30 enterprises was 1,451 billion VND. However, ACB alone accounted for 56% of profit. There were 3 enterprises with losses in the first quarter, namely VGS, OCH and PVL, and 3 enterprises with profits of less than 200 million dong, namely SDU, DCS and PFL.

Low business efficiency is also the reason why HNX30’s price level is much lower than VN30’s. If VN30 only has QCG trading below par, HNX30 has 13 codes, of which 3 codes under 5,000 dong are DCS, PFL and IDJ.

Even liquidity is a problem for HNX30. If VND, KLS, SCR can match millions of orders per session, codes like SDU or NTP are in the low liquidity group with a few hundred shares traded. Meanwhile, most of the codes in VN30 are in the group with the best liquidity in the market today.

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