Frequently Asked Questions

Turkish TEFAS funds include equity funds (hisse senedi fonu), fixed-income funds (borçlanma araçları fonu), money market funds (para piyasası fonu), gold/commodity funds, mixed funds, and exchange-traded funds (ETFs). Each has different risk and return profiles.

Turkish mutual funds are priced once per trading day. The net asset value (NAV) per unit — called birim pay değeri — is calculated at market close and published on TEFAS. Purchases and sales submitted on a given day are settled at the next trading day's NAV.

NAV (Net Asset Value) is the total market value of a fund's assets minus its liabilities, divided by the number of outstanding units. It represents the price per unit of the fund and is recalculated every trading day.

All Turkish mutual funds are regulated by the Capital Markets Board of Turkey (SPK) and distributed via TEFAS. While this provides regulatory oversight, all investments carry risk. Tefaster is a tracking tool and does not provide investment advice.

After logging in, navigate to the Portfolio section and click 'New Portfolio'. Give it a name (e.g., 'Retirement', 'Short-term'), then add transactions to it. You can create multiple portfolios to keep different strategies separate.

Open a portfolio, click 'Add Transaction', search for the fund by name or code, enter the date, number of units (pay adedi), and the price per unit (birim pay değeri) from your broker confirmation. Select 'Buy' or 'Sell' and save.

A fund (fon) is the financial product managed by a portfolio company — for example, AK Portföy Hisse Senedi Fonu (AKH). A portfolio in Tefaster is your personal collection of transactions across one or more funds. You own units in funds; Tefaster organizes those holdings into portfolios.

Yes. You can create as many portfolios as you need. The dashboard shows an aggregated view across all portfolios, while the Portfolio section lets you drill into each one individually.

The fund detail page shows the historical NAV chart along with simple return and CAGR (Compound Annual Growth Rate) over selectable time periods. Short periods (under 1 year) show simple return only; longer periods show both.

Fund prices are fetched automatically from TEFAS every day at 12:00 PM Turkey time (UTC+3). Exchange rates from the Turkish Central Bank (TCMB) and commodity prices are synced at the same time.

TEFAS funds do not trade on weekends or Turkish public holidays. When no price is available for a given date, Tefaster automatically looks back up to 7 calendar days to find the most recent trading day price. This ensures your portfolio value is always calculated correctly.

All fund prices are sourced directly from TEFAS via the official tefas-crawler library. Prices reflect the official NAV published by Turkish portfolio management companies and are the same values used for actual fund transactions.

Exchange rates (e.g., USD/TRY) come from the Turkish Central Bank (TCMB) official data feed. They are synced daily alongside fund prices and are used for fund comparison in the market data section.

MKK (Merkezi Kayıt Kuruluşu) is Turkey's central securities depository — the official institution that records all securities ownership in Turkey. To download your fund transaction history: log in at mkk.com.tr, navigate to Yatırımcı Girişi → Hesap Hareketleri, select your date range, and click the Excel button to download a .xls file.

Go to the Transactions page and click the 'Import from MKK' button. Upload the .xls file you downloaded from mkk.com.tr and select which portfolio the transactions should be added to. Fund purchases (fon alış) are imported as BUY transactions and fund sales (fon satış) as SELL. Blocking rows (blokaja alma / blokaj çözme) are skipped automatically.

Nothing — the import is idempotent. Each transaction is stored with a unique import reference derived from the fund's ISIN code, transaction timestamp, type, and unit count. Re-uploading the same file or an overlapping date range will not create duplicate transactions.

The free plan includes tracking unlimited funds, creating one portfolio, recording transactions, viewing performance charts, and accessing all market data.

Premium adds unlimited portfolios so you can keep separate strategies, accounts, or family portfolios side by side.

Go to the Subscription section from the navigation menu or your account settings and follow the upgrade steps. Premium is activated instantly after payment.

Yes. You can cancel anytime from the Subscription section. Your premium access continues until the end of the current billing period.

Portfolio rebalancing is the process of realigning your fund allocations back to your intended target weights. Over time, funds that perform well grow to a larger share of your portfolio than planned, while underperformers shrink — rebalancing restores your original risk/return profile by selling overweight positions and buying underweight ones.

Open a portfolio and go to the Holdings view. Next to each fund row you will find a target percentage input. Enter your desired allocation (e.g. 30%% for a fund) and Tefaster will immediately show whether that position is overweight or underweight relative to its current share of your portfolio.

Each holding with a target allocation shows a BUY, SELL, or HOLD badge. BUY means the fund is underweight — you need to buy more units to reach your target. SELL means it is overweight. The badge also displays the number of units (pay adedi) to buy or sell, calculated from the current NAV, so you can act directly without manual arithmetic.

No. Target allocations are optional and per-fund. Funds without a target simply show HOLD and are excluded from rebalance calculations. You can set targets for a subset of your portfolio — for example only the funds you actively manage — and leave the rest untracked.

There is no universal rule. Common approaches are time-based (e.g., quarterly or annually) or threshold-based (e.g., rebalance when any position drifts more than 5 percentage points from its target). Tefaster shows the current drift in real time so you can decide when the deviation is large enough to act. Tefaster does not provide investment advice — the decision is always yours.

Modern Portfolio Theory (MPT), developed by Harry Markowitz, holds that an investor can construct a portfolio of multiple assets that maximises expected return for a given level of risk. The key insight is diversification: combining assets whose returns are not perfectly correlated reduces overall portfolio volatility without necessarily reducing expected return. Tefaster supports MPT principles by letting you track allocation across many funds and monitor drift from your target weights via the rebalancing feature.

XIRR (Extended Internal Rate of Return) is an annualised return metric that accounts for the exact timing and size of each cash flow — each buy and sell transaction. Unlike simple return, XIRR correctly handles irregular contributions and withdrawals, making it the most accurate way to compare your actual portfolio performance against a benchmark or another fund.

CAGR (Compound Annual Growth Rate) expresses how much a single lump-sum investment would have grown per year over the selected period. Simple return shows the total percentage gain or loss regardless of time. For short periods (under one year) Tefaster shows only simple return; for longer periods both are shown so you can assess performance on an annualised basis.

Use the fund search and leaderboard to identify funds across different asset classes (equity, fixed income, gold, money market) and portfolio management companies. Add them to your portfolio with target allocations that reflect your risk tolerance, then use the rebalancing feature to monitor and maintain those weights over time. Tefaster tracks all 2,500+ TEFAS funds, so you have a broad selection to work with. Remember that diversification does not guarantee profit or protect against loss.