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* Improve error message when consolidator period Python object is unsupported
* Make unsupported consolidator period error message more concise
* Apply descriptive Python conversion errors to other user-facing sites and add QuoteBarConsolidator.FromResolution
* List available overloads in unsupported Python argument error messages
* Update QuantConnect.pythonnet to 2.0.61
* Update overload hint test expectations to Python-typed signatures
* Exclude PyObject overloads from error hints and update to Python annotation style
* Move PyObject overload filtering from consumers into MethodSignatureFormatter
* Update Python alpha model name expectations for Python-style enum rendering
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* Fix MaximumSharpeRatioPortfolioOptimizer to maximize the Sharpe ratio
The optimizer fixed the portfolio return to the equal-weight return
((µ − r_f)ᵀw = k) and minimized variance, which collapsed it to a
minimum-variance optimizer instead of maximizing the Sharpe ratio.
Python now maximizes (µ − r_f)ᵀw / √(wᵀΣw) directly with SLSQP, keeping
the budget constraint Σw = 1 and the per-weight bounds. C# applies the
Charnes-Cooper substitution y = κw, minimizing yᵀΣy subject to
(µ − r_f)ᵀy = 1 and recovering w = y / (1ᵀy); the per-weight bounds are
written as linear constraints in y (yᵢ − up·(1ᵀy) ≤ 0, yᵢ − lw·(1ᵀy) ≥ 0)
so the problem stays a convex QP and the [lower, upper] range is honored.
Both languages reach the same optimum, and the unit-test expectations are
updated to the corrected weights.
Addresses QuantConnect/Lean#9322
* Add property-based test that the optimizer maximizes the Sharpe ratio
* Cover all well-defined cases in the Sharpe optimality test
* Bound the optimality test above by the tangency Sharpe ceiling
* Throw clear error when AddData is called with a non-class first argument from Python
Calls like self.add_data("VIX", Resolution.DAILY) routed through CreateType, which
silently built a dynamic assembly named after the string and returned a fake type
whose activator factory tried to invoke the str like a function. The downstream
'str' object is not callable PythonException surfaced confusingly (and could
manifest as an apparent hang depending on where it was caught), making the actual
mistake hard to diagnose.
Validate the PyObject up front via TryCreateType in the AddData(PyObject, ...)
entry points and throw an ArgumentException pointing the user at AddEquity /
AddForex / etc. when the argument is not a custom data class.
* Improve the error message
Use only two alternative methods as examples, as we don't need an exhaustive list.
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* Implement indicator-based option price model
This model uses IV and Greeks indicators to implement Lean's own option pricing model
* Minor fixes
* Address peer review
* Minor tests fixes
* Make the indicator based price model the default for options
* Address peer review
* Cleanup and minor changes
* Support indicators configuration for new pricing model
* Some cleanup
* Add QL option price model example algorithm
* Return lean models from static helpers
* Minor tests fixes
* Minor test fixes
* Address peer review
* Cleanup
* Fix unit tests
* Move QL models to OptionPriceModels.QuantLib.*
* Add forward tree helper method
* Fix HistoryRequest DataMappingMode default to use security configuration
* Solve review comments
* Make HistoryRequest inherit existing subscription configuration values generically
* Exclude any class that inherits from BaseChainUniverseData
* Reuse existing filter for user configuration
* Solve review comments
* Normalize DataMappingMode
* Minor fix
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* Refactor optimization result stats serialization
* Handle custom optimization statistics serialization
* Support custom statistics
* Support newest Lean statistics
Address peer review
* Add more tests
* Make indices reserved statistic names
* Minor fixes and cleanup
* Centralize Python/C# model detection logic
* Improve helper method
* Remove unnecessary conditionals
* Fix unit tests
* Refactor QCAlgorithm.python.cs to use the new helper method for models
* Solve review comments
* Clean up Python wrapper exception
* Update XML comments to better describe T and TWrapper in CreateModelOrWrapper
* Join unit tests in TestCases
* Solve review comments
* Replace manual TryConvert checks with CreateInstanceOrWrapper helper
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* Add SeedInitialPrices algorithm setting
This is true by default and indicates that the engine will seed initial prices right after the security is added or selected
* Update regression algorithms
* Update regression algorithms
* Update regression algorithms
* Refactor default securities seeding
* Minor fix
* Minro fixes
* Cleanup
* Updated and add regression algorithms
* Address peer review
* Centralize logic to get last known data for multiple securities
* Some cleanup
* Minor build fix
* Minor fixes
* More logic centralization
* Some more cleanup
* Cleanup
* Update regression algorithms and minor fixes
* Update regression algorithms
* Minor fix
* More minor fixes
* Update regression algorithms
* Cleanup
* Minor test fix
* Address peer review
* Minor fix and performance improvement
* Fix to seed open interest data
* Minor test fixes
* Address peer review
* Minor change
* Minor revert
* Minor fixes and improvements
* Disable initial seeding by default
* Minor fixes
* Cleanup
* Cleanup
* Minor fix
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* Initial solution
* Solve review comments
* Add PythonSelectionModelHandler to reduce code duplication
* Refactor universe selection models
* Add python instance to Selection Models with virtual/override methods
* Add python instance to Alpha Models
* Add python instance to Execution models
* Solve review comments
* Solve new review comments
* Fix calling SetPythonInstance only when method exists and is callable
* Use unit test instead of regression algorithms
* Solve review comments
* Set python instance to the models
* Initialize Python containers only when instance is set
* Replace try-catch with explicit method existence check
* Initialize containers in BasePythonWrapper only when needed
* Add null instance check before method invocation
* Refactor TryExecuteMethod
* Refactor Python wrappers which inherit from BasePythonWrapper<>
* Solve review comments
* Remove ununsed methods
* Solve review comments
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* Use Futures Bank Holidays For Expirations
* Minor improvements
- Futures will be stored by their contract month, not expiry
* Delete dairy future products
* Minor test fixes
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* Fix settting brokerage model after adding security initializer
* Minor fix
* Minor change
* Minor change
* Send warning for calling SetBrokerageModel before setting or adding security initializer
* Send warning for calling SetBrokerageModel before setting or adding security initializer
* Minor change
* Minor change
* Cleanup
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* Add new QCAlgorithm.AddSecurityInitializer method
This allows to add multiple security initializers without manually creating an instance of a CompositeSecurityInitializer
* Add Python support
* Cleanup
* Fix extended hours only days period history
Don't include extended hours only days in date range calculated fro period history request
* Add comments
* Cleanup
* Revert some changes
* Cleanup
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* Add 'asynchronous' parameter to trading api
* Add regression algorithms
* More fixes for asynchronous orders
* Fix failing unit tests
* Fix failing unit tests
* Add multiple orders requests in transaction handler
Make each transaction thread handle requests corresponding to the same order
* Refactor order state machine in BrokerageTransactionHandler
Now using a single dictionary to hold orders and their state, either pending for submission, open or closed.
* Revert: remove complete orders from new state machine in BTH
* Add order ticket to new BTH open orders state machine
* Run syn in Backtesting transaction handler for new orders submission
* Remove OpenOrderState.SubmissionPending property
* Add Security to OpenOrderState
* Minor fix
* Cleanup
* Some cleanup in BTH
* Cleanup
* Minor fix
* Minor unit test fix
* Minor fix
* Make Brokerage.ConcurrencyEnable property virtual
* Minor change
* Cleanup
* Add 'asynchronous' parameter to SetHoldings api
* Improve regression algorithms
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* Some fixes for new C# enums handling in Pythonnet
* Minor changes and cleanup
* Update Pythonnet version to 2.0.45
* Minor changes
* Minor fix
* Minor fix
* Minor change
* Minor change
* Minor unit test fix
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* Changed default async to true and passed target.Tag
* Make execution models place orders asynchronously if specified
* Add unit tests
* Execution model default to asynchronous orders.
Also, minor fixes for tickets remaining fill quantity potential race conditions
* Add SecurityHolding.UnrealizedQuantity property
It gets the holding quantity the security will have once all open orders are filled.
Added for thread safety reasons when execution models place asynchronous orders and need to calculate the actual quantity needed to reach the target of there are open orders
* Some cleanup
* Adjust projected holdings quantity on splits
* Minor fix
* More changes and cleanup
* Minor fix
* Improvements for thread safety
* Add IOrderProvider.GetProjectedHoldings to get projected holdings atomically
* Minor unit tests fix
* Add ProjectedHoldings DTO class
* Address peer review
---------
Co-authored-by: arthiondaena <arthiondaena@gmail.com>
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* Allow multiple concurrent transaction handlers
Also support multiple producers in BrokerageConcurrentMessageHandler
* Minor change
* Minor change
* Add new maximum-transaction-threads config to json file
* Minor naming changes
* Address peer review and add unit tests
* Minor fix
* Minor fix and unit tests
* Address peer review
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* Support sub-indicator discovery using IIndicator and exclude PandasIgnore attribute
* WIP: PandasInclude
* Add PandasInclude annotation
* Resolve review comments
* Add a list of ignored properties
* Clean up [PandasIgnore] in IndicatorBase
* feat: support MOO in CharlesSchwabBrokerageModel
* feat: validate IsMarketOpen with MOO order type in PreOrderChecks
* test:feat: Validate MOO in various Market hours time
* fix: Algo with new MOO time validation
* test:fix: set DateTime of Algo explicitly in OrderQuantityConversionTest
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* Fill forward prev date universe file in manual chains fetch
If there is no universe file available for the current date, use the previous one and fill forward to avoid having empty chains on a day when we haven't generated the universe files
* Try a maximum of 3 days behind for manual chains fetching
* Minor change
* Minor fix
* Add comments
* Minor fix
* Minor fix for expired contracts
* Initialize securities on re-addition
* Minor unit tests fixes
* Reset Index.ManualSetIsTradable when security is removed
* More changes to clean up and simplify
* Address security re-utilization only
* Cleanup regression algorithms
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* Disable extended market hours for universe history requests
* Exclude extended market hours for all chain universe history requests
* Disable extended market hours for chain universes
* Minor change
* Minor fix
* Minor change
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* Make FOPs selection universe file-based for backtesting
* Make FOPs option chains universe file based
* Make Future universe selection file-based like option universe
* Make Future universe selection file-based like option universe
* Abstraction cleanup
* Add FuturesChains API to QC algorithm
Also refactor future chain provider to use the new FutureUniverse instead of zip file names
* Update regression algorithms stats
* Refactor QuantBook option and future history to use new universes
* Fix failing tests
* Fix failing tests
* Fix failing tests
* Minor future chains unit test improvement
* Add futures chains DataFrame property
Also, remove IDerivativeSecurity interface from Future
* Add DataFrame property to FuturesChains class
* Add regression algorithms
* Add regression algorithms
* Replace QCAlgorithm.FutureChainProvider usages with new FuturesChain api
* Minor fixes
* Reduce number of universe files in repo
* Minor data fixes
* Regression algorithms updates
* Add implicit conversion from FuturesContract to Symbol
Modified algorithms to use futures contract objects directly instead of accessing their Symbol property.
Removed unnecessary import statements and redundant lines in various files.
* Improve resolution handling for history requests
* Changed _auxiliaryData field to lazily-initialized AuxiliaryData property
* Refactor data handling in BaseChain and TimeSliceFactory
- Added `AddData` method to `BaseChain` for adding market data
- Refactored `TimeSliceFactory` to use `BaseChain.AddData` method
* Remove specific constructors and indexers from Chain classes
Removed public indexers in `BaseChains` for getting or setting `BaseChain` instances by `ticker` or `Symbol`, which were used for Pythonnet compatibility.
* Remove chain cache logic from FuturesChainUniverse
* Refactor class and interface names for clarity
Renamed `FileBasedUniverse` to `BaseChainUniverseData` and
`IFileBasedUniverse` to `IChainUniverseData`.
* Add base class for options and futures contracts
- Introduced `BaseContract` as an abstract base class for contracts, consolidating common properties and methods.
- Removed ISymbolInterface
* Add minor fix for future options tickers parsing
Added tests
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* Clean chain provider classes up
* Remove ZipEntryName other classes and unused code
Removed ZipEntryName class and references across various files.
Removed DataQueueFuturesChainUniverseDataCollectionEnumerator and DataQueueOptionChainUniverseDataCollectionEnumerator classes.
Removed OptionChainUniverseSubscriptionEnumeratorFactory class.
Removed unused code for handling OptionChainUniverse and FuturesChainUniverse in FileSystemDataFeed.cs and LiveTradingDataFeed.cs.
Removed several test files related to enumerator factories and universe data collection.
* Minor changes and cleanup
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* Refactor FuturesContract data handling
Forward price data from bars and ticks stored in private fields for improved memory usage
* Fix: use universe data for market data in FuturesContract
* Update regression algorithms stats after rebase
Added HSI futures universe files
* Sort configs by internal flag
Internals go first
* Throw from option universe data filters for future options
Future options IV, Open interest and greeks are not supported for future options
* Minor changes
* Improve some regression algorithms
* Minor fix for failing unit tests
* Update FOPs universe file header
Removed greeks and IV columns.
Updated FOPs universe files: removed outdated columns.
* Minor unit test fix
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* Minor fix
* Add history provider as constructor argument for chain providers
* Update new regression algorithms data points count
* Minor fix for FakeDataQueue
* Add initialize method to chain providers classes
* Minor changes
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* Minor fix
* Minor fix
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* Add logs to ProcessedDataProvider
* Removed test logs
* Minor fix
* Support downloading options and futures universe files from api data provider
Jhonathan Abreu