What is "rollover"

also roll-over "an overturning," 1945, from verbal phrase; see roll (v.) + over (adv.). Economic verbal sense of "reinvest" is from 1957.

n. 1 the act of rolling over 2 a road traffic accident in which a vehicle overturns 3 (context computing English) a graphic element that changes its shape or colour when the cursor moves over it 4 the process of reinvesting funds in a new issue of the same or similar investment 5 a fee paid by a borrower in order to defer full repayment of a loan 6 (context British English) in the National or European lottery, the situation in which a jackpot that has not been won is carried over to the next week 7 (context pinball English) A target on the pinball table that is activated when the ball rolls over it.

n. the act of changing the institution that invests your pension plan without incurring a tax penalty

A rollover is a type of vehicle crash in which a vehicle tips over onto its side or roof. Rollovers have a higher fatality rate than other types of vehicle collisions.

The word Rollover has a number of different uses:

• Rollover - a type of vehicle accident
  • Dynamic rollover - a type of rollover specific to helicopters
• A service offered by AT&T Mobility (formerly Cingular wireless) and Pure TalkUSA
• Rollover (web design) - an interactive button on a web site
• Rollover (film), a 1981 film starring Jane Fonda, Kris Kristofferson and Hume Cronyn
• Rollover (finance) is a process whereby a financial instrument is reinvested at maturity
• In lotteries, a rollover is what happens when there is no winner of a game and the prize is carried over to the subsequent game
• Rollover, a transfer between different financial arrangements involving Individual Retirement Accounts
• Rollover (key), a property of keyboard/keypad input devices
• In some video games, a score that exceeds the highest possible score " rolls over" back to 0 points
• Rollover (fire) is a phenomenon related to flashover
• Rollover cable, a type of cable used to connect a computer's serial port to a Cisco router's console port
• Rollover, the algebraic difference between two different and adjacent cross slopes in highway engineering
• Roll Over, song written by British hard rock band Zico Chain off of their self entitled EP

Rollover is a 1981 political and financial thriller directed by Alan J. Pakula and starring Jane Fonda and Kris Kristofferson. The film was nominated for a Razzie Awards for Worst Actor for Kristofferson.

Rollover refers to a button created by a web developer or web designer, found within a web page, used to provide interactivity between the user and the page itself. The term rollover in this regard originates from the visual process of "rolling the mouse cursor over the button" causing the button to react (usually visually, by replacing the button's source image with another image), and sometimes resulting in a change in the web page itself. The part of the term 'roll' is probably referring to older mice which had a mechanical assembly consisting of a hard rubber ball housed in the base of the mouse (which rolls) contrary to the modern optical mouse, which has no 'rolling' parts. The term mouseover is probably more appropriate considering current technology.

Rollovers can be done by imagery, text or buttons. The user only requires two images/buttons (with the possible addition of "alt" text to these images) to perform this interactive action. Rollover imagery can be done either by a program with a built-in tool or script coding. The user will have to pick a first image and select an alternate secondary image. A mouse action will have to be set to either "click on" or "mouse over" in order for the rollover to be triggered. Note that when the "mouse over" moves on the image, the alt image/secondary image will appear but won't stay - when the user "mouses out" by moving the mouse away from the image, the original source image will reappear.

Rollover is the ability of a computer keyboard to correctly handle several simultaneous keystrokes.

Rollover (also known as flameover) is a stage of a structure fire when fire gases in a room or other enclosed area ignite. Since heated fire gases, the product of pyrolysis, rise to the ceiling, this is where a rollover phenomenon is most often witnessed. Visually, this may be seen as flames "rolling" across the ceiling, radiating outward from the seat of the fire to the extent of gas spread.

Rollover is not the same as flashover, although it may precede it, and the terms may be confused. In the case of rollover, only gases present in the room, not the room contents, ignite.

In foreign exchange trading (FX), a rollover is the action taking place at end of day, where all open positions with value date equals SPOT, will be rolled over to the next business day. This happens since in FX trading the trader doesn't want to actually buy the traded currencies but to continue to trade until position is closed.

For example, on Monday all position with value date of Wednesday (in case of T+2) will be rolled over and the value date will be updated for Thursday. Position with value date of Friday will be updated with value date of next Monday.

Trading platforms offer rollovers but the process involves a rollover interest fee which is calculated according to the difference between the interest rates of the traded currencies. If the interest rate on the trader's long position is higher than the rate on the short position, the trader receives the interest. If the interest rate on the trader's short position is higher than the rate on the long position, then the trader pays the interest. For weekends and holidays, the rollover is multiplied by the number of days of rollover.