Virtual bidding

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Virtual bidding is a strategy implemented in various Independent System Operator electricity markets of trading Day-Ahead prices against Real-Time (or Hour-Ahead) prices. The term "bid" can be used loosely in electricity markets to refer to an offer to buy or to sell. And the term "virtual" is used to refer to the fact that, while these trades occur in a physical market, virtual trades never entail taking a physical position—because every sell (or buy) Day Ahead will be closed by a buy (or sell) in Real Time. The ISO maintains a trade execution system that ensures all virtual positions will be closed before delivery time. A virtual bidding platform gives financial entities a way to participate in these physical markets, with no physical assets or presence on the grid. They can attempt to capitalize on regular divergences between these markets of different time period for the same underlying (perhaps using time, absolute price levels, or other external variables as conditioning factors). If this strategy of trading one time period against another without the intent (or perhaps even the ability) to deliver or receive physical power is implemented outside of a transaction system that identifies virtual bids and ensures they will be closed, it may be referred to as "implicit" virtual bidding. Virtual positions are included in the same simultaneous feasibility tests and price determination processes as real positions. Thus they can serve to reduce inefficiencies in the market.

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Virtual bidding is a form of speculation not dissimilar to futures trading in the other commodity markets. Virtual bidding is the buying and selling of electricity without ever physically producing or consuming it. Instead all trades are offset in a subsequent market thus preventing physical delivery. There are a number of differences between virtual bidding and traditional commodity markets. Prominent amongst these are that virtual bidding occurs in electricity markets that are discrete, whereas most commodity markets allow for continuous trading. In addition virtual bidding usually occurs for very short time horizons, usually between the day-ahead market and the real-time market. There is no reason why it should not occur in different electricity markets. For example, buying and selling monthly contracts for a common delivery point such as the California-Oregon Border (COB) without ever taking physical delivery is extremely similar to virtual trading, although in this latter case the product is not explicitly identified as a virtual product. Identifying virtual trades explicitly occurs in all the organized Independent System Operator-type markets and confers the benefit of not co-mingling truly physical bids with financial bids. This clear delineation prevents the financial act of speculation from unduly affecting the reliability of the electric system.

Futures contract standardized legal agreement to buy or sell something (usually a commodity or financial instrument) at a predetermined price (“forward price”) at a specified time (“delivery date”) in the future

In finance, a futures contract is a standardized forward contract, a legal agreement to buy or sell something at a predetermined price at a specified time in the future, between parties not known to each other. The asset transacted is usually a commodity or financial instrument. The predetermined price the parties agree to buy and sell the asset for is known as the forward price. The specified time in the future—which is when delivery and payment occur—is known as the delivery date. Because it is a function of an underlying asset, a futures contract is a derivative product.

In a postal system, a delivery point is a single mailbox or other place at which mail is delivered. It differs from a street address, in that each address may have several delivery points, such as an apartment, office department, or other room. Such buildings are often called multiple-dwelling units (MDUs) by the USPS.

Virtual bidding is implemented for a number of reasons, not the least of which is the fact that in its absence there is a tendency for implicit virtual bidding to occur, and the presence of this practice tends to create difficulties for grid operators. There are many benefits of virtual bidding besides the fact that its presence creates an appropriate avenue for arbitrage and in essence assists reliability. The most commonly identified benefits are as follows:

Market power mitigation

Often generators reside in load pockets where physical competition is constrained due to insufficient transmission. Virtual bidding allows virtual traders to compete to supply power within the constrained area. For this benefit to exist the type of virtual bidding must allow bid submission at the nodal level or at the constrained area level.

Mitigation of the monopsony power of load

Load is often large enough to influence the market outcome by varying the quantity they bid into the DA market. Virtual bidding mitigates this power by allowing other market participants to simply bid in the load that was under-scheduled.

Mitigation of supplier market power

The mitigation of supplier (generators) market power is commonly accepted but less well documented. For suppliers to exercise market power they would need to withhold generation in the Day-Ahead market (DAM). This is more difficult in the presence of virtual bidding as virtual traders can submit virtual supply to compete away this withholding practice.

In economics and particularly in industrial organization, market power is the ability of a firm to profitably raise the market price of a good or service over marginal cost. In perfectly competitive markets, market participants have no market power. A firm with total market power can raise prices without losing any customers to competitors. Market participants that have market power are therefore sometimes referred to as "price makers" or "price setters", while those without are sometimes called "price takers". Significant market power occurs when prices exceed marginal cost and long run average cost, so the firm makes economic profit.

Market efficiency improvements

The improvements to market efficiency emerge as the prices in the DA and RT markets tend to converge. This makes pricing less volatile and this decrease, albeit small, is the benefit. Prices will not converge completely as there will still be stochastic differences that were not foreseen between DA and RT, but the narrowing of the price spread leads to greater predictability.

Risks of virtual bidding

The purported benefits of virtual bidding have resulted in it spreading to new ISOs over time. There remain some risks though. The principal risk is that virtual trades will be used to leverage positions in other markets, such as the Financial Transmission Rights market. To prevent this some markets have implemented specific rules to prevent this sort of gaming. [1]

Mechanics of virtual bidding

The ability to insert virtual bids is usually controlled by the host market, and requires specific registration due to the differing characteristics between virtual bids and physical bids. The submission method is generally similar across Independent System Operators. [2]

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Related Research Articles

In economics and finance, arbitrage is the practice of taking advantage of a price difference between two or more markets: striking a combination of matching deals that capitalize upon the imbalance, the profit being the difference between the market prices. When used by academics, an arbitrage is a transaction that involves no negative cash flow at any probabilistic or temporal state and a positive cash flow in at least one state; in simple terms, it is the possibility of a risk-free profit after transaction costs. For example, an arbitrage opportunity is present when there is the opportunity to instantaneously buy something for a low price and sell it for a higher price.

Commodity market physical or virtual transactions of buying and selling involving raw or primary commodities

A commodity market is a market that trades in the primary economic sector rather than manufactured products, such as cocoa, fruit and sugar. Hard commodities are mined, such as gold and oil. Investors access about 50 major commodity markets worldwide with purely financial transactions increasingly outnumbering physical trades in which goods are delivered. Futures contracts are the oldest way of investing in commodities. Futures are secured by physical assets. Commodity markets can include physical trading and derivatives trading using spot prices, forwards, futures, and options on futures. Farmers have used a simple form of derivative trading in the commodity market for centuries for price risk management.

Contango

Contango, also sometimes called forwardation, is a situation where the futures price of a commodity is higher than the anticipated spot price at maturity of the futures contract. In a contango situation, arbitrageurs/speculators, are "willing to pay more [now] for a commodity at some point in the future than the actual expected price of the commodity [at that future point]. This may be due to people's desire to pay a premium to have the commodity in the future rather than paying the costs of storage and carry costs of buying the commodity today." On the other side of the trade, hedgers are happy to sell futures contracts and accept the higher-than-expected returns. A contango market is also known as a normal market, or carrying-cost market.

In economic terms, electricity is a commodity capable of being bought, sold, and traded. An electricity market is a system enabling purchases, through bids to buy; sales, through offers to sell; and short-term trades, generally in the form of financial or obligation swaps. Bids and offers use supply and demand principles to set the price. Long-term trades are contracts similar to power purchase agreements and generally considered private bi-lateral transactions between counterparties.

Day trading Buying and selling financial instruments within the same trading day

Day trading is speculation in securities, specifically buying and selling financial instruments within the same trading day, such that all positions are closed before the market closes for the trading day. Traders who trade in this capacity with the motive of profit are therefore speculators. The methods of quick trading contrast with the long-term trades underlying buy and hold and value investing strategies. Day traders exit positions before the market closes to avoid unmanageable risks negative price gaps between one day's close and the next day's price at the open.

Forward contract non-standardized contract between two parties to buy or sell an asset at a specified future time at a price agreed upon today

In finance, a forward contract or simply a forward is a non-standardized contract between two parties to buy or to sell an asset at a specified future time at a price agreed upon today, making it a type of derivative instrument. The party agreeing to buy the underlying asset in the future assumes a long position, and the party agreeing to sell the asset in the future assumes a short position. The price agreed upon is called the delivery price, which is equal to the forward price at the time the contract is entered into.

Futures exchange central financial exchange where people can trade standardized futures contracts

A futures exchange or futures market is a central financial exchange where people can trade standardized futures contracts; that is, a contract to buy specific quantities of a commodity or financial instrument at a specified price with delivery set at a specified time in the future. These types of contracts fall into the category of derivatives. The opposite of the futures market is the spots market, where trades will occur immediately after a transaction agreement has been made, rather than at a predetermined time in the future. Futures instruments are priced according to the movement of the underlying asset. The aforementioned category is named "derivatives" because the value of these instruments are derived from another asset class.

Hedge (finance)

A hedge is an investment position intended to offset potential losses or gains that may be incurred by a companion investment. A hedge can be constructed from many types of financial instruments, including stocks, exchange-traded funds, insurance, forward contracts, swaps, options, gambles, many types of over-the-counter and derivative products, and futures contracts.

Market maker financial markets term

A market maker or liquidity provider is a company or an individual that quotes both a buy and a sell price in a financial instrument or commodity held in inventory, hoping to make a profit on the bid-offer spread, or turn. The U.S. Securities and Exchange Commission defines a "market maker" as a firm that stands ready to buy and sell stock on a regular and continuous basis at a publicly quoted price.

Regional transmission organization (North America) electric power transmission system operator in North America that coordinates a multi-state grid

A regional transmission organization (RTO) in the United States is an electric power transmission system operator (TSO) that coordinates, controls, and monitors a multi-state electric grid. The transfer of electricity between states is considered interstate commerce, and electric grids spanning multiple states are therefore regulated by the Federal Energy Regulatory Commission (FERC). The voluntary creation of RTOs was initiated by FERC Order No. 2000, issued on December 20, 1999. The purpose of the RTO is to promote economic efficiency, reliability, and non-discriminatory practices while reducing government oversight.

Algorithmic trading is a method of executing a large order using automated pre-programmed trading instructions accounting for variables such as time, price, and volume to send small slices of the order out to the market over time. They were developed so that traders do not need to constantly watch a stock and repeatedly send those slices out manually. Popular "algos" include Percentage of Volume, Pegged, VWAP, TWAP, Implementation Shortfall, Target Close. In the twenty-first century, algorithmic trading has been gaining traction with both retail and institutional traders. Algorithmic trading is not an attempt to make a trading profit. It is simply a way to minimize the cost, market impact and risk in execution of an order. It is widely used by investment banks, pension funds, mutual funds, and hedge funds because these institutional traders need to execute large orders in markets that cannot support all of the size at once.

In finance, a calendar spread is a spread trade involving the simultaneous purchase of futures or options expiring on a particular date and the sale of the same instrument expiring on another date. The legs of the spread vary only in expiration date; they are based on the same underlying market and strike price.

Scalping, when used in reference to trading in securities, commodities and foreign exchange, may refer to

  1. a legitimate method of arbitrage of small price gaps created by the bid-ask spread.
  2. a fraudulent form of market manipulation

The National Balancing Point, commonly referred to as the NBP, is a virtual trading location for the sale and purchase and exchange of UK natural gas. It is the pricing and delivery point for the ICE Futures Europe (IntercontinentalExchange) natural gas futures contract. It is the 2nd most liquid gas trading point in Europe and is a major influence on the price that domestic consumers pay for their gas at home. Gas at the NBP trades in pence per therm. It is similar in concept to the Henry Hub in the United States – but differs in that it is not an actual physical location.

Market manipulation is a type of market abuse where there is a deliberate attempt to interfere with the free and fair operation of the market and create artificial, false or misleading appearances with respect to the price of, or market for, a product, security, commodity or currency.

The price discovery process is the process of determining the price of an asset in the marketplace through the interactions of buyers and sellers. The futures and options market serve all important functions of price discovery. The individuals with better information and judgement participate in these markets to take advantage of such information. When some new information arrives, perhaps some good news about the economy, for instance, the actions of speculators quickly feed their information into the derivatives market causing changes in price of derivatives. These markets are usually the first ones to react as the transaction cost is much lower in these markets than in the spot market. Therefore these markets indicate what is likely to happen and thus assist in better price discovery.

A smart market is a periodic auction which is cleared by the operations research technique of mathematical optimization, such as linear programming. The smart market is operated by a market manager. Trades are not bilateral, between pairs of people, but rather to or from a pool. A smart market can assist market operation when trades would otherwise have significant transaction costs or externalities.

Convergence trade is a trading strategy consisting of two positions: buying one asset forward—i.e., for delivery in future —and selling a similar asset forward for a higher price, in the expectation that by the time the assets must be delivered, the prices will have become closer to equal, and thus one profits by the amount of convergence.

References

  1. See ISO New England PII M-28 Market Rule 1 Accounting (Revision ASM Phase II) 06-02-06, (June 5, 2006) at 6.3.2 Adjustments to FTR Target Allocations Available at http://www.iso-ne.com/rules_proceds/isone_mnls/index.html
  2. See CAISO, CAISO Convergence Bidding White Paper, 2006, Available at http://www.caiso.com/1807/1807996f7020.html; NYISO nyiso Market Participant User’s Guide, at 7-72, Available at: http://www.nyiso.com/public/webdocs/documents/guides/mpug_mnl.pdf