ETF IDX30 vs LQ45: Full Comparison for Investors
ETF IDX30 vs LQ45 comparison on Indonesia Stock Exchange: tickers, expense ratios, bid-ask spread, trading volume, liquidity, and recommendations for beginners and advanced investors.
Note: This article discusses ETFs traded on the Indonesia Stock Exchange (BEI/IDX). The fund names, tickers, and regulations are specific to the Indonesian market.
ETF IDX30 vs LQ45: Complete Comparison Guide
If you’re already familiar with index mutual funds and want to understand their exchange-traded alternative, this article will cover everything you need to know about IDX30 and LQ45-based ETFs traded on the Indonesia Stock Exchange (BEI/IDX).
Before diving into the comparison, understand this: An IDX30 ETF and an IDX30 index mutual fund are two different instruments even though both track the same index. The IDX30 vs LQ45 article covers index comparison more broadly. Here we focus on specific ETF products: trading mechanics, transaction costs, secondary market liquidity, and when ETFs make more sense than index mutual funds.
ETF vs Index Mutual Fund: Fundamental Differences
Before comparing IDX30 vs LQ45 ETFs, let’s understand how ETFs differ from regular index mutual funds.
| Aspect | ETF | Index Mutual Fund |
|---|---|---|
| How to buy/sell | On the stock exchange via broker (real-time) | Via platform/MI at end-of-day NAV |
| Transaction price | Market price (can be premium/discount from NAV) | Always end-of-day NAV |
| Minimum purchase | 1 lot (100 units) | IDR 10,000 (on Bibit/Bareksa) |
| Transaction costs | Broker commission 0.15–0.29% + 0.1% tax when selling | 0% on modern platforms |
| Capital gains tax | 0.1% of sale value (income tax on stock transactions) | 0% for individual investors |
| Trading flexibility | Can buy/sell anytime during market hours | T+2 to T+7 processing |
| Price transparency | Real-time price on exchange | NAV published end of day |
| Liquidity | Depends on trading volume on exchange | Guaranteed by MI |
Critical point: In Indonesia, ETF secondary market liquidity is still very low compared to index mutual funds. This difference is often overlooked.
IDX30-Based ETF Products on the Indonesia Stock Exchange
Premier ETF IDX30 (Ticker: XIIT)
XIIT is the largest and most liquid ETF tracking the IDX30 index on the Indonesia Stock Exchange.
| Detail | Information |
|---|---|
| Full name | Premier ETF IDX30 |
| Ticker | XIIT |
| Investment manager | PT Premier Investment Management |
| Benchmark index | IDX30 |
| Expense ratio | ~0.50% per year |
| Replication method | Full replication (buys all 30 stocks per index weight) |
| Minimum purchase | 1 lot (100 units) |
| Dividend distribution | Reinvested in NAV |
XIIT Trading Characteristics:
XIIT is the most actively traded stock ETF on the Indonesia Stock Exchange. Even so, its daily volume is still very small compared to individual blue-chip stocks. On a normal trading day, XIIT volume can range from thousands to tens of thousands of lots — compare this with BBCA or BBRI which can trade hundreds of thousands to millions of lots.
XIIT Bid-Ask Spread:
The spread is the difference between the best price buyers are willing to pay (bid) and the lowest price sellers are willing to accept (ask). The smaller the spread, the lower the implicit cost of transacting.
- Typical XIIT spread: 0.1–0.5% on normal days
- Spread can widen to 1–2% during high volatility or thin liquidity
- This is a hidden cost that ETF investors often ignore
LQ45-Based ETF Products on the Indonesia Stock Exchange
MOST ETF LQ45 (Ticker: XMLI)
XMLI is the ETF tracking the LQ45 index, managed by Mandiri Manajemen Investasi.
| Detail | Information |
|---|---|
| Full name | MOST ETF LQ45 |
| Ticker | XMLI |
| Investment manager | Mandiri Manajemen Investasi |
| Benchmark index | LQ45 |
| Expense ratio | ~0.50% per year |
| Replication method | Sampling (buys majority of LQ45 stocks) |
| Minimum purchase | 1 lot (100 units) |
XMLI Trading Characteristics:
XMLI has historically lower trading volume than XIIT. This means wider bid-ask spread and potential difficulty executing trades in large quantities.
Typical Daily Volume Comparison:
| ETF | Typical Daily Volume | Typical Bid-Ask Spread |
|---|---|---|
| XIIT (IDX30) | Thousands – tens of thousands of lots | 0.1–0.5% |
| XMLI (LQ45) | Hundreds – thousands of lots | 0.3–1.0% |
Liquidity conclusion: For investors planning to transact in large amounts or needing immediate execution, XIIT is more recommended due to better secondary market liquidity.
Direct Comparison: ETF IDX30 (XIIT) vs ETF LQ45 (XMLI)
| Parameter | XIIT (IDX30) | XMLI (LQ45) |
|---|---|---|
| Benchmark index | IDX30 (30 stocks) | LQ45 (45 stocks) |
| Expense ratio | ~0.50% | ~0.50% |
| Concentration | More concentrated (30 stocks) | More diversified (45 stocks) |
| Constituent overlap | ~90% same | ~90% same |
| Trading volume | Higher | Lower |
| Bid-ask spread | Smaller | Larger |
| Secondary market liquidity | ★★★★☆ | ★★★☆☆ |
| Tracking error | Low (full replication) | Slightly higher (sampling) |
| Rebalancing frequency | 2x/year (January & July) | 2x/year (February & August) |
| Recommendation | Primary choice for index ETF | Alternative for broader exposure |
Constituent Overlap: How Different Are IDX30 and LQ45?
One of the most frequent questions: does choosing IDX30 or LQ45 make a significant difference to my portfolio?
The answer: almost no material difference.
Stock Overlap
Of the 30 IDX30 stocks, approximately 27–28 stocks (90%+) are also in LQ45. Only 2–3 of the lowest-ranked IDX30 stocks may not be in LQ45, and 15–17 LQ45 stocks not in IDX30 are smaller-cap stocks with smaller weights.
Top 10 Stocks (Consistently in Both):
| Stock | Sector | Company |
|---|---|---|
| BBCA | Banking | Bank Central Asia |
| BBRI | Banking | Bank Rakyat Indonesia |
| BMRI | Banking | Bank Mandiri |
| TLKM | Telecommunications | Telkom Indonesia |
| ASII | Automotive/Conglomerate | Astra International |
| BBNI | Banking | Bank Negara Indonesia |
| UNVR | Consumer | Unilever Indonesia |
| ICBP | Consumer | Indofood CBP |
| INDF | Consumer | Indofood |
| GOTO | Technology | GoTo Group |
Note: Composition is updated by BEI every 6 months. Check latest data at idx.co.id
Performance Correlation
Because constituent overlap exceeds 90% and the largest stocks (which most influence returns) are identical, the historical performance correlation between XIIT and XMLI is very high — above 0.98 on a monthly basis. This means you don’t get meaningful additional diversification by holding both.
Historical ETF Performance Comparison
Because both track very similar indices, XIIT and XMLI historical performance is nearly identical. Small differences that exist are usually due to:
- Tracking error — how accurately the ETF follows its benchmark index
- Rebalancing timing differences — IDX30 rebalances January/July, LQ45 February/August
- Effective bid-ask spread — implicit costs paid when buying/selling
- Differences in LQ45’s 15 additional stocks — generally insignificant
Long-term performance note: The IHSG (Indonesia Composite Index) has historically provided approximately 10–12% annual nominal returns long-term (including dividends). IDX30 and LQ45 contain the stocks that dominate the IHSG, so their performance correlates strongly with the overall market.
ETF vs Index Mutual Fund: Which Is Better?
This question is more relevant for most investors than choosing between IDX30 vs LQ45 ETFs.
When ETFs Make More Sense
1. Large investment amounts (> IDR 50 million per transaction) Broker commission of 0.15–0.29% becomes less significant compared to real-time trading convenience and potentially better liquidity.
2. You already have a brokerage account If you actively trade stocks and want broader market exposure without hassle, ETFs are an efficient way — just buy XIIT like buying a stock.
3. Want to enter at a specific price ETFs allow purchase at real-time market prices. If the IHSG suddenly drops 3% and you want to buy at that price, ETFs can execute immediately. Index mutual funds will execute at end-of-day NAV.
4. Comfortable with capital market mechanisms Understanding lots, bid-ask spread, and order books is a prerequisite for investing in ETFs effectively.
When Index Mutual Funds Make More Sense
1. Monthly DCA with small amounts It’s very difficult to DCA IDR 500,000/month with ETFs because you must buy in lots (100 units). Index mutual funds can buy exactly IDR 500,000.
2. Beginner investors Index mutual funds via Bibit or Bareksa are much simpler: open account, pick product, set auto-invest. No need to understand exchange mechanisms.
3. Tax efficiency priority Mutual funds are capital gains tax-free for individual investors. ETFs incur 0.1% income tax on sale value — small but it exists.
4. Don’t want to worry about bid-ask spread Index mutual fund NAV always executes at fair value. ETFs can execute at premium or discount from NAV if secondary market liquidity is low.
Specific ETF Risks to Understand
1. Limited Secondary Market Liquidity
The most important risk for Indonesian ETFs: low liquidity. If there are no buyers in the market when you want to sell, you must wait patiently or accept a price lower than NAV.
During market panic (e.g., IHSG drops 5% in a day), ETF liquidity can temporarily disappear — spreads widen dramatically, volume thins. In the same situation, index mutual fund investors can still redeem at end-of-day NAV.
2. NAV Discount/Premium
ETFs can trade at prices below NAV (discount) or above NAV (premium). The authorized participant mechanism should keep prices near NAV, but in Indonesia this mechanism isn’t perfect due to thin liquidity.
Implication: when buying an ETF, you might pay slightly more than actual value (premium), and when selling you might receive slightly less (discount).
3. Transaction Costs That Accumulate
Every time you buy an ETF, there’s a broker commission. If you DCA monthly:
- DCA IDR 1 million/month for 10 years = 120 transactions × 0.15% = 0.15% effective cost per transaction
- This adds significantly to your effective annual cost above the expense ratio
Index mutual funds via modern platforms: 0% transaction costs.
Who Is Each Option Best For?
Recommend IDX30 ETF (XIIT) For:
- ✅ Investors with existing active brokerage accounts
- ✅ Large lump sum investments (> IDR 10 million per transaction)
- ✅ Those wanting IDX30 exposure integrated into a stock portfolio
- ✅ Institutional or semi-professional investors
- ✅ Tactical trading (momentum-based portfolio rebalancing)
Recommend IDX30 Index Mutual Fund For:
- ✅ Beginners just starting passive investing
- ✅ Automated monthly DCA with amounts < IDR 5 million
- ✅ Investors who prioritize tax efficiency
- ✅ Those who don’t want to learn exchange mechanisms
- ✅ Long-term investment without needing real-time trading flexibility
Recommend LQ45 ETF (XMLI) For:
Honestly, there are very few compelling reasons to choose XMLI over XIIT. Both are nearly identical in composition and expense ratio, but XIIT is more liquid. The only case: if you want slightly broader constituents (45 vs 30 stocks) and believe the additional mid-cap stocks in LQ45 provide meaningful diversification value.
How to Buy ETFs on the Indonesia Stock Exchange
Unlike index mutual funds that can be bought on Bibit/Bareksa, ETFs must be purchased through stock securities/brokers. Here’s how:
Step 1: Open a Securities Account
Choose a securities firm registered with BEI. Some popular options:
- IPOT (Indo Premier) — user-friendly interface, good for beginners
- Stockbit — popular for fundamental analysis
- Mirae Asset — competitive commission fees
- Mandiri Sekuritas — Mandiri bank integration
Step 2: Deposit Funds
Deposit funds to the RDN (Rekening Dana Nasabah / Client Fund Account) automatically created when opening a securities account.
Step 3: Search for the ETF on the Platform
In the trading menu, search for ticker XIIT (IDX30) or XMLI (LQ45). Note:
- Last price — most recently traded price
- Bid — highest price buyers are willing to pay
- Ask — lowest price sellers are willing to accept
- Volume — number of lots traded today
Step 4: Place Your Order
Buy at least 1 lot (100 units). You can place:
- Market order — immediate execution at the best ask price currently available
- Limit order — set the maximum price you’re willing to pay, wait for a matching seller
Step 5: Monitor and Rebalance
No need to monitor frequently — this is passive investing. Review your portfolio every 6–12 months and rebalance if allocation drifts too far from target.
Summary and Final Recommendation
If you must choose one:
For most Indonesian investors, IDX30 index mutual funds via Bibit/Bareksa are more practical than ETFs — especially for beginners and those doing monthly DCA.
If you do want an ETF, XIIT (Premier ETF IDX30) is the better choice over XMLI due to higher secondary market liquidity. Nearly identical index composition means both deliver very similar returns — so choose the more liquid one.
Takeaway:
| Situation | Recommendation |
|---|---|
| Beginner, monthly DCA | IDX30 index mutual fund (Bahana/Pinnacle) |
| Already have brokerage account, large lump sum | ETF XIIT (IDX30) |
| Want LQ45 exposure via ETF | ETF XMLI, but consider low liquidity |
| Want broader diversification beyond IDX30/LQ45 | Consider IHSG-based or global index funds |
Also read index funds for a comprehensive overview of index investing in Indonesia, and asset allocation to determine what percentage of your portfolio should be allocated to stock indices.
Sources & References:
- Indonesia Stock Exchange — ETF Data
- OJK — Mutual Funds
- Premier ETF IDX30 (XIIT) — Prospectus (2026)
- Premier ETF IDX30 (XIIT) — Fund Fact Sheet (2026)
- Mandiri ETF LQ45 (XMLI) — Prospectus (2025)
- Mandiri ETF LQ45 (XMLI) — Fund Fact Sheet (2026)
- IDX — IDX30 and LQ45 Index Composition
Disclaimer: This article is educational, not investment advice. Volume and spread data are illustrative based on historical market conditions. Always verify current market conditions before transacting.