Platform comparison
MetaTrader 4 vs MetaTrader 5: how price feeding differs.
MT4 and MT5 can both receive resilient broker price feeds, but MT5 adds a richer market-data model and more configuration surfaces.
- Both platforms support prioritized sources and per-symbol controls.
- MT5 adds Last, volume, real Market Depth, and feed translations.
- One upstream pricing policy can serve both.
MT4 is narrower
Its simpler Bid/Ask model leaves fewer platform settings to govern.
MT5 is richer
It supports exchange-style ticks and books but creates more mapping, timing, and recovery decisions.
Centralize policy
Source selection, markups, protection, and schedules are easier to control once upstream.
On this page
The right comparison is not a list of every administrator field. It is the operational path from source to client: what the platform can receive, where transformations happen, how a backup takes over, and what evidence remains afterwards.
The short answer
Choose MT4 when an established OTC estate needs a straightforward Bid/Ask feed and migration is not the goal. Choose MT5 when instruments need Last, real volume, exchange-style Market Depth, richer market statistics, or the newer server architecture.
Running both is common. In that case, centralize the commercial pricing policy and treat each platform as a delivery destination.
Side-by-side
Swipe or scroll horizontally to see all columns
| Area | MetaTrader 4 | MetaTrader 5 |
|---|---|---|
| Core market data | Primarily Bid and Ask for OTC instruments | Bid, Ask, Last, volume, and Market Depth |
| Feed architecture | Feed modules run with the trade-server environment | Feed processes connect through the history-server architecture and can be separated |
| Symbol selection | Feed symbol/keyword rules | Group-aware symbol masks and rules |
| Per-feed renaming | Usually handled in a gateway, bridge, symbol alias, or upstream layer | Translation rules can rename source symbols |
| Per-feed price shift | Commonly handled outside the data-feed dialog | Translation rules can shift Bid and Ask |
| Traffic controls | Smaller set of feed controls | Delay and sampling may be available by data type |
| Quote filtering | Per-symbol distance, range, confirmation, opening, and smoothing controls | Graduated price channels, spread limits, and gap flags |
| Backup selection | Ordered feeds with server-level switching policy | Ordered sources with per-symbol activation through the history server |
| Sessions | Separate quote and trading hours per symbol | Separate quoting and trading sessions, plus richer exchange workflows |
| Evidence | Journals and retained raw/accepted ticks need deliberate setup | Feed status, counters, journals, and raw/accepted tick history |
Exact fields vary by build and module, so compare the target environments rather than relying on a generic checklist.
Where MT5 needs more design
MT5’s richer data creates decisions that do not exist in a simple MT4 Bid/Ask feed:
- Is Last authoritative, and does it carry real volume?
- Is Market Depth real provider liquidity, broker-created OTC depth, or a displayed ladder?
- How does a complete book recover after a reconnect or source switch?
- Do translation rules change price as well as name?
- Are delay or sampling controls enabled?
- Which component owns session statistics and reference data?
Those are reasons to choose MT5 when the instruments require them—not reasons to add complexity to an OTC feed that does not.
Where MT4 still needs care
MT4’s smaller surface is not the same as automatic simplicity. Source masks, list priority, symbol aliases, filters, smoothing, and quote sessions can still make the client-visible stream differ from the source.
The most important discipline is evidence: record the active source, symbol settings, raw input, accepted ticks, and client output for representative instruments.
Failover differs in detail, not in purpose
Both platforms prefer an ordered source and can move to another when eligible quotes stop. Both can also return to the preferred source.
In either platform:
- coverage must overlap before a backup can take over;
- normal session silence must not look like failure;
- connection recovery is not the same as source switching;
- a live but wrong source may remain preferred; and
- switch-back deserves the same testing as failover.
See the focused MT4 backup guide and MT5 backup guide .
One policy, two delivery targets
Keep these decisions upstream and consistent:
- provider-to-client symbol mapping;
- source eligibility and priority;
- aggregation or synthetic calculation;
- markup, spread, precision, and rounding;
- stale and abnormal-input protection; and
- the intended publishing schedule.
Then keep only platform-specific connection, session, and final-validation controls in MT4 and MT5. That separation reduces duplicated rules and makes a price difference between the platforms much easier to explain.
Start with the MT4 guide or MT5 guide for the implementation details, and use the complete price-feed path to define the shared upstream layer.
A feed shaped around your setup
Bring one feed policy to both platforms.
If you run MT4 and MT5 side by side, send both symbol lists. We’ll describe how one pricing policy can serve both without duplicated rules.